Low-Profile Window-Mountable Climate Control Systems Comprising AC-Heating Units, Mount Frames, and Modular Seals and Methods of Installing Such Systems

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application 63/673,568, filed on 2024 Jul. 19, which is incorporated herein by reference in its entirety for all purposes.

FIELD OF TECHNOLOGY

This disclosure generally relates to air conditioning-heating systems and more specifically to low-profile window-mountable air conditioning-heating units supported using mounting frames and sealed with window-frame seals.

BACKGROUND

Conventional window-mountable air conditioning systems often rely on rigid, unitary designs that require significant manual effort to install, particularly when accommodating wall thicknesses, uneven sill geometries, or wide window frames. These systems typically include accordion-style vinyl side curtains to close the gap between the unit and the window opening. However, such seals provide minimal thermal insulation, poor weatherproofing, and limited adaptability to different window configurations. Moreover, such seals are prone to deformation, degradation from UV exposure, and intrusion by outdoor elements such as water, dust, and rodents.

Many conventional systems also lack mechanical features that accommodate buildings with thick or multi-layered walls. As a result, installers are frequently forced to use ad hoc materials, tools, or custom brackets to bridge the indoor and outdoor components. This not only increases installation complexity and time but can also compromise system performance or safety as well as integrity of the building walls. In some cases, installation may require permanent modifications to the window frame or wall structure, which may be undesirable or prohibited in leased or historic buildings.

Additionally, existing systems generally do not account for flexible routing of refrigerant and electrical lines between interior and exterior portions (e.g., that allow pivoting these portions relative to each other without stressing these lines). This limits the adaptability of newer system architectures that separate indoor and outdoor components while requiring high-performance sealing. Thus, there exists a need for a more modular, mechanically adaptable, and thermally efficient window-mountable air conditioning-heating system that improves sealing, simplifies installation, and accommodates a variety of building and window configurations-without compromising aesthetics or requiring permanent attachment to the structure.

SUMMARY

A low-profile window-mountable air conditioning-heating system, described herein, comprises an air conditioning-heating unit formed by interior and exterior housings and interconnected by a bridge housing that encloses flexible fluid lines and sliding bridge rails. The system also comprises a mounting frame that supports the unit across a building wall without permanent attachment or wall penetration. The frame also enables pivoting and extension to simplify installation and accommodate different wall thicknesses. The system comprises a window-frame seal with a center seal module and stackable seal modules to accommodate varying window widths. Each seal module comprises a pile seal and a rigid base configured to interlock with other seal modules thereby filling the gap in different window sizes while enhancing thermal insulation, water resistance, and durability. The modular aspect of the window-frame seal provides improved weather sealing, simplifies installation, and avoids the limitations of conventional seals.

Clause 1. A low-profile window-mountable climate control system for installing across a window opening defined by a window frame positioned in a building wall, the low-profile window-mountable climate control system comprising: an air conditioning-heating unit comprising an interior housing, an exterior housing, a bridge housing, and a service loop, wherein: the bridge housing defines an interior cavity, and the service loop extends through the interior cavity and operatively couples the interior housing and the exterior housing; a mounting frame configured to engage the window frame and the building wall and support the air conditioning-heating unit in the window opening; and a window-frame seal comprising a center seal module configured to position between the window frame and at least the bridge housing to fill and seal gaps between the window frame and at least the bridge housing, wherein the window-frame seal further comprises a side foam unit configured to the positioned between the center seal module and the window frame.

Clause 2. The low-profile window-mountable climate control system of clause 1, wherein: the air conditioning-heating unit further comprises a pivot mechanism, and the pivot mechanism allows the exterior housing to pivot relative to the bridge housing about a pivot axis, and

Clause 3. The low-profile window-mountable climate control system of clause 1, wherein the bridge housing comprises bridge rails allowing for the interior housing and the exterior housing to translate relative to each other to accommodate different thicknesses of the building wall.

Clause 4. The low-profile window-mountable climate control system of clause 1, wherein the center seal module comprises a bottom rubber seal, forming a surface of the center seal module facing away from the bridge housing and being configured to interface with the window frame.

Clause 5. The low-profile window-mountable climate control system of clause 1, wherein the service loop comprises a fluid supply line and a fluid return line fluidically coupling the interior housing and the exterior housing.

Clause 6. The low-profile window-mountable climate control system of clause 1, wherein the center seal module comprises a center seal shell and weatherstripping piles supported by the center seal shell and configured to engage and seal against the bridge housing.

Clause 7. The low-profile window-mountable climate control system of clause 1, wherein the side foam unit is configured to directly interface with the center seal module and the window frame.

Clause 8. The low-profile window-mountable climate control system of clause 1, wherein the window-frame seal further comprises a set of rigid side blocks, each block in the set of rigid side blocks is configured to interlock with at least one of the center seal module or another block in the set of rigid side blocks.

Clause 9. The low-profile window-mountable climate control system of clause 8, wherein at least two blocks in the set of rigid side blocks have different widths.

Clause 10. The low-profile window-mountable climate control system of clause 8, wherein the side foam unit is configured to be positioned between and directly interface with one block in the set of rigid side blocks and the window frame.

Clause 11. The low-profile window-mountable climate control system of clause 8, wherein the center seal module comprises a first shell side and a second shell side, each configured to interlock with one block in the set of rigid side blocks.

Clause 12. The low-profile window-mountable climate control system of clause 11, wherein each of the first shell side and the second shell side comprises a top edge, coplanar with a top surface of the one block in the set of rigid side blocks when the one block is interlocked with one of the first shell side and the second shell side.

Clause 13. The low-profile window-mountable climate control system of clause 1, wherein the side foam unit comprises a side-foam-unit base and plastic covers.

Clause 14. The low-profile window-mountable climate control system of clause 1, wherein the side foam unit is configured to directly interface with the center seal module and the window frame.

Clause 15. The low-profile window-mountable climate control system of clause 1, wherein the window-frame seal further comprises a channel foam for filling between the center seal module and the window frame.

Clause 16. The low-profile window-mountable climate control system of clause 1, wherein: the mounting frame comprises an interior frame section and a longitudinal frame section, the interior frame section comprises a first interior vertical frame element and a second interior vertical frame element, the longitudinal frame section comprising a first longitudinal frame element, configured to engage the first interior vertical frame element, and a second longitudinal frame element, configured to second interior vertical frame element, the interior frame section comprises a first interior vertical frame element and a second interior vertical frame element, the first interior vertical frame element is configured to engage and attached to the first longitudinal frame element, and the second interior vertical frame element is configured to engage and attached to the second longitudinal frame element.

Clause 17. The low-profile window-mountable climate control system of clause 16, wherein: the interior frame section further comprises an interior cross-member and sill tighteners, attached to the interior cross-member and configured to engage the building wall and adjust position of the interior cross-member relative to the building wall, and the interior cross-member extends between and is attached to each of the first interior vertical frame element and the second interior vertical frame element.

Clause 18. The low-profile window-mountable climate control system of clause 1, wherein the mounting frame further comprises a pivoting exterior support section comprising retention rails configured to engage corresponding receivers on the exterior housing.

Clause 19. The low-profile window-mountable climate control system of clause 1, wherein the mounting frame further comprises one or more springs that support some portion of weight of the exterior unit.

Clause 20. The low-profile window-mountable climate control system of clause 1, wherein the bridge housing comprises a bridge insulator configured to thermally and acoustically isolate the interior housing from the exterior housing.

Clause 21. The low-profile window-mountable climate control system of clause 1, wherein the service loop comprises a fluid supply line and a fluid return line fluidically interconnecting the interior housing and the exterior housing and having a length selected to accommodate both translational and pivoting movement of the interior housing relative to the exterior housing.

Clause 22. The low-profile window-mountable climate control system of clause 21, wherein each of the fluid supply line and the fluid return line comprises a braided insulated refrigerant line anchored at rigid ferrules positioned adjacent to ends of the bridge housing.

Clause 23. The low-profile window-mountable climate control system of clause 21, wherein the exterior housing comprises a fluid-line guider biasing the fluid supply line and the fluid return line in a direction parallel to a window frame.

Clause 24. A method of installing a low-profile window-mountable climate control system through a window opening formed by a window frame in a building wall comprising an interior wall and a exterior wall, the low-profile window-mountable climate control system comprising an air conditioning-heating unit, a mounting frame, and a window-frame seal, the method comprising: configuring the mounting frame, wherein: the mounting frame comprises an interior frame section, a longitudinal frame section, an exterior frame section, and a pivoting exterior support section, and configuring the mounting frame comprises attaching at least a center seal module of the window-frame seal to the longitudinal frame section; positioning the mounting frame within the window opening; securing the mounting frame to the building wall such that the interior frame section comes in contact with the interior wall, the exterior frame section comes in contact with the exterior wall, and the center seal module is positioned between the window frame and the longitudinal frame section; positioning the air conditioning-heating unit on the mounting frame while the longitudinal frame section and the pivoting exterior support section are co-planar, wherein the air conditioning-heating unit comprises an interior housing, an exterior housing, and a bridge housing extending between and interconnecting the interior housing and the exterior housing, and; pivoting the exterior housing relative to the bridge housing such that the pivoting exterior support section also pivots relative to the longitudinal frame section; and sealing a portion of the window opening between the window frame and the center seal module by positioning a side foam unit on each of two sides of the center seal module between the center seal module and the window frame.

Clause 25. The method of clause 24, wherein sealing the window opening is further performed by positioning at least one block from a set of rigid side blocks between at least one of the two sides of the center seal module and the window frame.

Clause 26. The method of clause 25, wherein sealing the window opening is further performed by positioning multiple blocks from the set of rigid side blocks between the at least one of the two sides of the center seal module and the window frame.

Clause 27. The method of clause 25, wherein sealing the window opening is further performed by positioning one block from the set of rigid side blocks between each of the two sides of the center seal module and the window frame.

Clause 28. The method of clause 25, wherein sealing the window opening comprises selecting one or more block from the set of rigid side blocks based on a gap width between the window frame and the center seal module.

Clause 29. The method of clause 25, wherein the side foam unit is positioned on at least one of the two sides of the center seal module between the at least one block from the set of rigid side blocks and the window frame.

Clause 30. The method of clause 25, wherein the side foam unit is positioned on each of the two sides of the center seal module between the at least one block from the set of rigid side blocks and the window frame.

Clause 31. The method of clause 24, wherein the side foam unit comprises a side-foam-unit base and plastic covers forming opposite surfaces of the side foam unit and interfacing at least the window frame.

Clause 32. The method of clause 24, wherein: the exterior frame section comprises exterior feet; and configuring the mounting frame comprises adjusting location of the exterior feet on the exterior frame section.

Clause 33. The method of clause 24, wherein: the interior frame section comprises sill tighteners; and securing the mounting frame to the building wall comprises adjusting the sill tighteners.

These and other embodiments are described further below with reference to the figures.

BRIEF DESCRIPTION OF THE DRAWINGS

The included drawings are for illustrative purposes and serve only to provide examples of possible structures and operations for the disclosed inventive systems, apparatus, and methods. These drawings in no way limit any changes in form and detail that may be made by one skilled in the art without departing from the spirit and scope of the disclosed implementations.

FIG. 1A is a perspective view of a low-profile window-mountable climate control system installed through a window in a building wall, in accordance with some examples.

FIG. 1B is a side view of the low-profile window-mountable climate control system in FIG. 1A, protruding through the window opening, in accordance with some examples.

FIG. 1C is a block diagram of the low-profile window-mountable climate control system in FIG. 1A further showing various units and components of the system, in accordance with some examples.

FIGS. 2A-2B are perspective views of the air conditioning-heating unit, illustrating the relative positions of the interior housing and exterior housing in a pivoted configuration (FIG. 2A) and an installed configuration (FIG. 2B) forming a saddle-like shape/U-shape, in accordance with some examples.

FIGS. 2C and 2D illustrates the operation of a pivot mechanism 160, specifically, the transition between the pivoted configuration (FIG. 2C) and the installed configuration (FIG. 2D), in accordance with some examples.

FIG. 2E is a top cross-sectional view of the air conditioning-heating unit illustrating the internal routing of the fluid supply and return lines through the bridge housing as well as an internal bridge insulator separating the interior housing from the bridge interior cavity, in accordance with some examples.

FIG. 3A is a perspective view of the mounting frame in an assembled form and corresponding to the pivoted configuration of the air conditioning-heating unit, in accordance with some examples.

FIG. 3B is a side view of the mounting frame in FIG. 3A protruding through the window opening prior to positioning the air conditioning-heating unit on the mounting frame, in accordance with some examples.

FIG. 3C is a perspective view of a low-profile window-mountable climate control system illustrating the mounting frame's interface with the exterior housing and the bridge housing, while the air conditioning-heating unit is in the installed configuration, in accordance with some examples.

FIG. 3D is a perspective view of a low-profile window-mountable climate control system illustrating the mounting frame's interface with the interior housing and the bridge housing, while the air conditioning-heating unit is in the installed configuration, in accordance with some examples.

FIG. 4A is a perspective view of a window-frame seal, in accordance with some examples.

FIG. 4B is a side cross-sectional view of the window-frame seal in FIG. 4A illustrating the seal forming an interface between the windowsill and the bridge housing 150, in accordance with some examples.

FIG. 5 is a process flowchart corresponding to a method of installing a low-profile window-mountable climate control system through a window opening in a building wall, in accordance with some examples.

FIGS. 6A-6J are schematic views of different stages during the installation of a low-profile window-mountable climate control system through a window opening in accordance with the method in FIG. 5, in accordance with some examples.

DETAILED DESCRIPTION

The following description of embodiments of the invention is not intended to limit the invention to these embodiments but rather to enable a person skilled in the art to make and use this invention. Variations, configurations, implementations, example implementations, and examples described herein are optional and are not exclusive to the variations, configurations, implementations, example implementations, and examples they describe. The invention described herein can include any and all permutations of these variations, configurations, implementations, example implementations, and examples.

Introduction

Window-mountable air conditioning (AC) systems provide compact installation and integrated cooling, e.g., for single-room environments. Some systems also offer heating capabilities and may be referred to as window-mountable air conditioning-heating systems. However, many conventional window-mountable systems block a large portion of the window opening, obstructing natural light and visibility. Specifically, large-fixed systems placed across the window opening above the sill often limit window visibility and window access. Furthermore, conventional systems typically use deformable side curtains and/or foam materials (to seal portions of the window openings around the systems), weak mechanical anchoring (often requiring special wall anchors), and limited adaptability to varied wall thicknesses and window geometries. These shortcomings lead to inefficient thermal insulation, susceptibility to drafts and water ingress, and significant installation complexity.

The disclosed low-profile window-mountable climate control system provides a comprehensive solution featuring: (i) a pivoting and extendable air conditioning-heating unit; (ii) a mounting frame that does not require wall penetration and simplifies the overall installation; and (iii) a novel window-frame seal that uses rigid interlockable blocks and enables robust environmental sealing regardless of wall or window variation. Specifically, this modular seal comprises a rigid center module with pile seals that engage the air conditioning-heating unit or, more specifically, its bridge housing as well as the mounting frame. The modular seal may also comprise one or more sets of side modules (e.g., first and second, or left and right), each formed by a foam insert and/or one or more stackable and interlockable blocks to accommodate various sill widths. Foam inserts or compressible barriers may be used to fill small residual gaps, ensuring both insulation and pest resistance. In some examples (e.g., a narrow window), a foam insert is the only component positioned between the rigid center module and the window frame.

Unlike conventional systems, the mounting frame integrates adjustable pivoting feet and support rails that create mechanical leverage without requiring permanent fasteners. The bridge housing allows for both pivoting and sliding of the exterior housing, with fluid lines routed through a protected internal cavity. These features enable simple installation of the low-profile window-mountable climate control system in different types of buildings (e.g., wall thicknesses and materials, window openings) while ensuring that no fluid couplings or special electrical routing is needed during the installation.

FIG. 1A-1C: Low-Profile Window-Mountable Climate Control Systems

Referring to FIGS. 1A-1C, in some examples, a low-profile window-mountable climate control system 100 comprises an air conditioning-heating unit 110, a mounting frame 200, and a window-frame seal 300. Before the system installation, these components may be supplied not connected to each other. Furthermore, various components of the mounting frame 200 may be supplied disconnected from each other. The air conditioning-heating unit 110 comprises an interior housing 130, an exterior housing 170, and a bridge housing 150 interconnecting the interior housing 130 and the exterior housing 170. The interior housing 130 and exterior housing 170 are fluidically connected as supplied (prior to the installation) thereby eliminating the need to form fluidic connections and charge the low-profile window-mountable climate control system 100 with a working fluid. In other words, the air conditioning-heating unit 110 are supplied pre-assembled and pre-charged with the working fluid. Nevertheless, the interior housing 130 and the exterior housing 170 are able to pivot relative to each other to simplify the installation. Overall, during the installation, the air conditioning-heating unit 110, a mounting frame 200, and a window-frame seal 300 are configured to accommodate various wall thicknesses and sill widths and interconnected as further described below.

Specifically, FIG. 1A illustrates the low-profile window-mountable climate control system 100 installed through the window opening 419 of a window 410 in a building wall 400. In this example, the window 410 comprises a window frame 414 (that defines the window opening 419). The window 410 also comprises a first sash 411 and a second sash 412. The second sash 412 is fixed relative to the window frame 414 and covers a portion of the window opening 419. The first sash 411 is movable/slidable relative to the second sash 412 and the window frame 414 thereby allowing to open or close the remaining portion of the window opening 419. A bottom part of the window frame 414 that defines (in part) the window opening 419 is referred to as a windowsill 415. For simplicity, the windowsill 415 is viewed as a portion of the window frame 414 that extends between and is a part of the building interior 420 and the building exterior 422. A portion of the window frame 414 extending below the windowsill 415 within the building interior 420 and along the interior wall 404 may be referred to as a window apron 416.

Referring to FIG. 1A, the air conditioning-heating unit 110 is supported by the mounting frame 200 and is sealed against the window frame 414 using the window-frame seal 300. Furthermore, additional seals are used for sealing the air conditioning-heating unit 110 (or, more specifically, the bridge housing 150) against the first sash 411 and also for sealing the first sash 411 and the second sash 412 relative to each other as further described below. The mounting frame 200 also extends through the window opening 419 and is supported on the windowsill 415 as well as the exterior wall 406 and the interior wall 404. For simplicity, the window apron 416 is viewed as a part of the interior wall 404 when the contact point of the mounting frame 200 is described. One having ordinary skill in the °art would understand that the actual contact point will depend on the design of the window frame 414. In some examples, the installation and support of the mounting frame 200 is performed without penetrating at least the exterior wall 406 thereby simplifying the installation and maintaining the weather-barrier properties of the exterior wall 406. Furthermore, the installation and support of the mounting frame 200 may be performed without penetrating the interior wall 404 and/or the window frame 414.

Referring to FIG. 1A, the interior housing 130 is located within the building interior 420 with at least a portion of the interior housing 130 extending below the windowsill 415 to minimize visual obstruction of the window opening 419. Similarly, the exterior housing 170 is located on the building exterior 422 and a portion of the exterior housing 170 also extends below the windowsill 415 to minimize visual obstruction. The bridge housing 150 spans laterally across the window opening 419 and mechanically and fluidically connects the interior housing 130 to the exterior housing 170. In some examples, the bridge housing 150 may have a height (in the Z direction) of less than 200 millimeters, less than 150 millimeters, or even less than 100 millimeters. In some examples, the top surfaces of interior housing 130, bridge housing 150, and exterior housing 170 are positioned within the same plane. Overall, the illustrated low-profile window-mountable climate control system 100 is configured for saddle-style (U-shaped) installation to maintain a low visual profile while preserving visibility through the window 410 and operability of the window 410.

The window-frame seal 300 conforms to the bottom and side surfaces of the bridge housing 150 and longitudinal frame section 220, and fills the window opening 419 (between these surfaces and the window frame 414) to prevent air or water ingress while accommodating different window widths using interlocking seal modules. A first-sash bulb seal 390 and/or a sash-facing seal 391 may be positioned between the bridge housing 150 and the first sash 411, e.g., as shown in FIG. 1B and further described below with reference to FIG. 4B. Finally, an inter-ash bulb seal 392 may be positioned between the two sashes. In some embodiments the inter-sash bulb seal 392 may be of a wiper geometry instead. Collectively, these seals provide environmental isolation between the building interior 420 and the building exterior 422. Unlike traditional accordion-style vinyl inserts, the window-frame seal 300 includes interlocking rigid modules configured to accommodate a wide range of sill widths while maintaining thermal performance and moisture resistance. The sealing elements may include some combination of embedded pile seals, wiper seals, and/or compressible foams to ensure a draft-free installation.

Referring to FIG. 1B, a schematic side view of the low-profile window-mountable climate control system 100 is shown after the installation through a window opening 419 of a building wall 400. The interior housing 130 is positioned in the building interior 420, while the exterior housing 170 is positioned in the building exterior 422, with the bridge housing 150 extending through the window opening 419 and allowing for both mechanical support and internal routing of service lines (e.g., fluid lines, electrical harnesses, and/or a condensate line not shown). The bridge housing 150 also allows the exterior housing 170 to pivot about a pivot axis 111 to ease deployment and positioning. In this side view, the mounting frame 200 is shown supporting the system 100 from the interior wall 404, windowsill 415, and the interior wall 404 (or, more specifically, the window apron 416) without relying on permanent fasteners.

Referring to FIG. 1C, a block diagram is shown to identify major components of the low-profile window-mountable climate control system 100. For example, a bridge housing 150 comprises a bridge rail 156 and an internal cavity 152. The bridge housing 150 encloses supports a service loop 190 comprising a fluid supply line 192, fluid return line 194, and optionally an electrical harness and condensate line-all routed between the interior housing 130 and the exterior housing 170. The supply line 192 and return line 194 include flexible center supply-line segment 193 and flexible center return-line segment 195, which enable the mechanical extension and pivoting of the air conditioning-heating unit 110 without stressing the fluid connections to the fluid supply line 192 and fluid return line 194.

FIG. 1C also illustrates various heat exchangers, such as an interior heat exchanger 140 of the interior housing 130 that comprises an interior fluid inlet 142 and an interior fluid outlet 144. The exterior housing 170 also comprises an exterior heat exchanger 180 comprising an exterior fluid inlet 182 and an exterior fluid inlet outlet 184. These inlets and outlets are interconnected by the service loop 190 thereby enabling air conditioning and heating functions of the unit, which will be readily understood by one having ordinary skill in the art. In some examples, the exterior housing 170 also comprises a receiver 172 for mechanical engagement with the mounting frame and a handle 174 to assist with installation or repositioning/tilting of the exterior housing 170. These components are integrated to provide efficient thermal operation while enabling non-permanent installation and robust environmental sealing.

FIG. 2A-2E: Air Conditioning-Heating Units

As noted above and now with reference to FIGS. 2A-2E, the air conditioning-heating unit 110 comprises an interior housing 130, an exterior housing 170, and a bridge housing 150 extending between and interconnecting the interior housing 130 and exterior housing 170. The air conditioning-heating unit 110 also comprises a fluid supply line 192 and a fluid return line 194 fluidically interconnecting the heat exchangers of the interior housing 130 and the exterior housing 170 (e.g., as shown in FIG. 2E). The fluid supply line 192 and fluid return line 194 extend through the bridge housing 150 while allowing the exterior housing 170 to pivot relative to the interior housing 130 or, more specifically, relative to the bridge housing 150 about the pivot axis 111.

In some examples, the interior housing 130 comprises an interior heat exchanger 140 having an interior fluid inlet 142 and interior fluid outlet 144 (noted in FIG. 1C). The interior fluid inlet 142 may be at a first interior lateral bridge position, while the interior fluid outlet 144 may be at a second interior lateral bridge position. Similarly, the exterior housing 170 comprises an exterior heat exchanger 180 with an exterior fluid inlet 182 and an exterior fluid outlet 184. The exterior fluid inlet 182 is at the first exterior lateral bridge position, while the exterior fluid outlet 184 is at the second exterior lateral bridge position.

Referring to FIG. 2E, in some examples, the bridge housing 150 defines an interior cavity 152 and comprises a bridge rail 156, extending within the interior cavity 152 operable between a retracted bridge position and an extended bridge position to accommodate a range of depths of the window opening 419/widths of the windowsill 415 (along the X-axis). Furthermore, the bridge housing 150 comprises a bridge insulator 158 spanning the interior cavity 152 (within a Y-Z plane perpendicular to the length of the air conditioning-heating unit 110, extending along the X axis). In some examples, the bridge insulator 158 is positioned adjacent to the interior housing 130. Alternatively, the bridge insulator 158 may be positioned adjacent to the exterior housing 170 or include two insulators, one proximate to the interior housing 130 and one proximate to the exterior housing 170.

As shown in FIG. 2A-2B, the exterior housing 170 is pivotably coupled to a distal end of the bridge housing 150 using a pivot mechanism 160. The pivot mechanism 160 allows the exterior housing 170 to pivot about the pivot axis 111 (relative to the bridge housing 150) between a raised position/pivoted configuration (FIG. 2A) and a lowered position/installed configuration (FIG. 2B). Specifically, as shown in FIG. 2A, the exterior housing 170 extends parallel to the bridge housing 150 in the raised position. As shown in FIG. 2B, the exterior housing 170 extends downwardly from and orthogonal to the bridge housing 150 to locate over a building exterior under the window in the lowered position.

FIGS. 2C and 2D illustrate the operation of the pivot mechanism 160, specifically, the transition between the pivoted configuration (FIG. 2C) and the installed configuration (FIG. 2D). The pivot mechanism 160 comprises a first pivot unit 161 and a second pivot unit 162 that is pivotably coupled to the first pivot unit 161 by a pivot pin 169. The first pivot unit 161 may be a part of or attached to the bridge housing 150. Likewise, the second pivot unit 162 may be a part or attached to the exterior housing 170. The first pivot unit 161 comprises a first opening 163, a removable pin 166 that is removably positioned in the first opening 163, and a supporting pin 168. The second pivot unit 162 comprises a second opening 164, a third opening 165, and a semi-circular slot 167.

In the pivoted configuration (FIG. 2C), the first opening 163 and second opening 164 are aligned and the removable pin 166 protruded through these openings locking the position of the first pivot unit 161 and the second pivot unit 162 or, more generally, of the bridge housing 150 and the exterior housing 170. The supporting pin 168 protrudes through the semi-circular slot 167 and is positioned at one end of this semi-circular slot 167. To transition the air conditioning-heating unit 110 into the installed configuration, the removable pin 166 is removed from the first opening 163 and second opening 164, which enables the second pivot unit 162 to rotate relative to the first pivot unit 161 about the pivot axis 111. As the second pivot unit 162 rotates, the supporting pin 168 continues to protrude through the semi-circular slot 167 providing support of the second pivot unit 162 relative to the first pivot unit 161 (in addition to the pivot pin 169). It should be noted that the exterior housing 170 is relatively heavy and the transition between the pivoted and installed configurations may occur while the air conditioning-heating unit 110 is not supported by the mounting frame 200. For example, the air conditioning-heating unit 110 may be shipped in an installed configuration and before the installation, the air conditioning-heating unit 110 may be converted into the pivoted configuration.

When the second pivot unit 162 reaches the installed configuration relative to the first pivot unit 161 (shown in FIG. 2D), the first opening 163 is aligned with the third opening 165, and the removable pin 166 can be inserted through the first opening 163 and the third opening 165 thereby locking the second pivot unit 162 relative to the first pivot unit 161 in this configuration. The supporting pin 168 is now positioned at the other end of the semi-circular slot 167. To transition back into the pivoted configuration, the removable pin 166 is removed again, thereby allowing the second pivot unit 162 to pivot relative to the first pivot unit 161.

The interior housing 130 and the exterior housing 170 function to house cooling, heating, dehumidifying, air filtering, air handling, controls, and power supply components. For example, the interior housing 130 can house: (a) an interior fluid-to-air heat exchanger or refrigerant-to-air interior heat exchanger (e.g., an evaporator in a cooling mode), (b) an interior blower configured to drive air through the interior water-to-air heat exchanger; a power supply, (c) a controller, (d) a user interface (e.g., for adjusting cooling settings of the low-profile window-mountable climate control system 100), (e) an air filter, and/or (f) a condensate pump and condensate catch. The exterior housing 170 can similarly house: (a) an exterior heat exchanger, (b) a compressor, (c) an expansion valve, (d) a reversing valve, and (e) an outdoor blower configured to drive air past the exterior heat exchanger (e.g., through the condenser).

In further examples, the exterior housing 170 comprises a condenser; a valve or capillary expansion device; a reversing valve; a compressor that pumps compressed refrigerant into the condenser; and an exterior blower that drives air through the condenser to draw thermal energy out of the low-profile window-mountable climate control system 100. The interior housing 130 comprises: an evaporator; and an interior blower configured to drive air through the evaporator to draw thermal energy from interior air into the refrigerant, which expands and carries thermal energy back to the compressor and then to the condenser where air moving past the condenser carries thermal energy out of the low-profile window-mountable climate control system 100.

The system is described herein as operating in a cooling mode in which: the interior heat exchanger functions as an evaporator; and the exterior heat exchanger functions as a condenser. However, the system can also function in a heating mode in which: the exterior heat exchanger functions as an evaporator; and the interior heat exchanger functions as a condenser.

In some examples, the interior housing 130 and the exterior housing 170 are formed or molded in sheet metal (e.g., aluminum, steel), composite (e.g., fiberglass), or polymer (e.g., polyvinyl chloride, polyethylene, polypropylene, acrylonitrile butadiene styrene, acrylonitrile styrene acrylate). The interior housing 130 and the exterior housing 170 can also include physically coextensive (e.g., co-molded) or separate internal structures (e.g., internal steel chassis or frameworks) configured to locate their corresponding internal components.

To enable both bridge extension and pivoting of the exterior housing 170, the fluid supply line 192 includes a flexible center supply-line segment 193 arranged within the interior cavity 152 of the bridge housing 150. This segment adopts an omegoid (Q-shaped) geometry when the bridge rail 156 is in the retracted position and progressively straightens—its apex translating laterally within the cavity—as the bridge rail 156 extends to accommodate deeper wall configurations. A corresponding flexible center return-line segment 195 of the fluid return line 194 is similarly arranged and co-routed within the cavity, forming a service loop 190 with the supply line 192. This nested arrangement allows both lines to flex, extend, and contract in unison as the bridge changes length.

During the pivoting of the exterior housing 170 relative to the bridge housing 150 about the pivot axis 111, the flexible center segments 193 and 195 experience compound deformation—twisting about an axis parallel to the pivot and simultaneously compressing or stretching as needed. Their geometry and slack are selected to preserve continuous fluid flow and prevent concentrated mechanical stress at the connections to the interior and exterior heat exchangers. In some examples, the distal portion of the flexible center segment (proximate to the pivot axis 111) twists up to 90° when transitioning between raised and lowered housing positions, with strain distributed along its length to minimize fatigue. For example, a twist rate of approximately 1° per 0.1″ of length reduces the likelihood of plastic deformation or long-term wear.

The supply line 192 and return line 194 each comprise a three-part construction: a distal rigid segment (e.g., copper or stainless steel) within the exterior housing 170, a flexible center segment (e.g., a 316L stainless steel bellows enclosed in a braided shield and optionally wrapped in insulating foam) within the bridge housing 150, and a proximal rigid segment within the interior housing 130. These rigid segments are clamped at each end of the flexible section to prevent torque and tensile loads from being transmitted into brazed or welded joints. When retracted, the flexible center segment forms the described omegoid loop; when extended, it partially unfurls. For example, an 8-inch bridge extension may correspond to a total flexible segment length of approximately 32 inches. In general, a ratio of the bridge extension to the total flexible segment length may be ⅛-½ or, more specifically, ⅙-⅓.

The bridge housing 150 is dimensioned to ensure clearance and freedom of motion for the fluid lines. Specifically, the height of the interior cavity exceeds the outer diameter (including insulation) of the largest line by at least 5%, and the upper and lower interior surfaces may be smooth and continuous. These constraints help avoid pinching or abrasion as the bridge is extended or retracted. A distal leg of the omegoid loop runs adjacent to the pivot axis and is free to twist during housing pivot without excessive strain, contributing to system durability across repeated use cycles. Furthermore, the exterior housing 170 may comprise a fluid-line guider 176 (shown in FIG. 2B) that maintains the orientation of the fluid lines at an angle of less than 45°, less than 30°, or even less than 15° relative to the pivot axis 111 as these fluid lines cross the pivot axis 111 or, more specifically, cross the vertical plane containing the pivot axis 111.

The system 100 may also include an electrical harness, routed through the bridge housing 150 (e.g., as shown in FIG. 2B) and optionally bundled with the fluid lines. The harness may be arranged in a corrugated plastic conduit and is configured to follow a similar deformation profile—omegoid in the retracted state, straightening with bridge extension, and twisting with housing pivot. Similarly, a condensate management system may be included, comprising a condensate catch tray and pump (e.g., self-priming) in the interior housing 130, with a condensate line routed up through the bridge and discharged through the exterior housing 170. The condensate line can likewise flex, twist, and follow the service loop geometry. In some embodiments the pump can alternately be in the exterior housing.

In some examples, the fluid supply and return lines, electrical harness, and condensate line pass through and seal against the bridge insulator 158 for thermal, noise, and environmental separation. These lines may also be bundled together or otherwise constrained to move as a unit during bridge motion. Bundling mitigates risk of interference, binding, or kinking between the elements and ensures consistent spacing and mechanical behavior during both bridge extension and exterior housing pivot.

FIG. 3A-3D: Mounting Frames

As noted above and now with reference to FIGS. 3A-3C, the mounting frame 200 comprises an interior frame section 210, a longitudinal frame section 220, an exterior frame section 230, a pivoting exterior support section 240, and a spring 250. In some examples, some of these components may be detached from other components before the installation of the low-profile window-mountable climate control system 100. Furthermore, various components and subcomponents may be detachable/adjustable, e.g., to accommodate different designs and sizes of the window frame 414.

The interior frame section 210 is configured to support the interior housing 130 of the air conditioning-heating unit 110. Referring to FIG. 3A, the interior frame section 210 comprises a first interior vertical frame element 212, a second interior vertical frame element 214, and an interior cross-member 216 extending laterally between the first interior vertical frame element 212 and the second interior vertical frame element 214. The interior cross-member 216 is configured to contact an interior wall 404 or a window apron 416 below the windowsill 415. The interior cross-member 216 is configured to distribute forces applied by the air conditioning-heating unit 110 and the interior frame section 210 across the some portion of width of the interior wall 404. The interior frame section 210 may also comprise a first horizontal frame element 217 and a second horizontal vertical frame element 218 that is used to engage with the longitudinal frame section 220. It should be noted that the terms “vertical” and “horizontal” are used herein to simply differentiate various components and may only refer to the gravitational vertical after the mounting frame 200 (and more generally the entire low-profile window-mountable climate control system 100 is installed). As such, before the installation, the terms “vertical” and “horizontal” are not related to the gravitational vertical.

The longitudinal frame section 220 is configured to be located over and be supported by the windowsill 415. Furthermore, the longitudinal frame section 220 is configured to support the bridge housing 150. The longitudinal frame section 220 comprises a first longitudinal frame element 222 and a second longitudinal frame element 224. Specifically, the first longitudinal frame element 222 is configured to engage the first horizontal frame element 217, while the second longitudinal frame element 224 is configured to engage the second horizontal vertical frame element 218. One or both the longitudinal frame element and the horizontal frame element have a plurality of openings that may be used to adjust the distance between the exterior frame section 230 and the interior vertical frame elements, to accommodate different wall thicknesses. Overall, the mounting frame 200 may have multiple levels of adjustments to engage the interior and exterior walls. For example, a coarse level adjustment may be achieved by slidable coupling of the longitudinal frame elements and the horizontal frame elements. A medium level adjustment may be achieved by repositioning the exterior feet 232 relative to the exterior frame section 230 (e.g., also using multiple offset holes on the exterior feet 232). A finer level adjustment may be achieved using sill tighteners 215 (e.g., that are positioned on the interior cross-member 216 and are configured to convert a rotation motion to a linear motion). Overall, the longitudinal frame section 220 extends longitudinally from the interior frame section 210 and can be configured to different retracted frame position (in combination with the interior frame section 210) to accommodate the range of depths of window 410.

The exterior frame section 230 extends downwardly from the longitudinal frame section 220 and comprises a set of exterior feet 232 extending rearward from the longitudinal frame section 220. The exterior feet 232 are configured to seat against the exterior wall 406 or the window apron 416 (below the windowsill 415) operating with the interior cross-member 216 to clamp the mounting frame 200 to the exterior wall 406 or the window apron 416.

The pivoting exterior support section 240 is pivotably coupled to a distal end of the longitudinal frame section 220 adjacent to the exterior frame section 230. The pivoting exterior support section 240 is operable in a setup position (shown in FIGS. 3A-3B) and an installed position (shown in FIG. 1B). Specifically, the pivoting exterior support section 240 extends parallel to the longitudinal frame section 220 in the setup position. In the installed position, the pivoting exterior support section 240 extends downwardly and orthogonal to the longitudinal frame section 220, nests adjacent to the exterior frame section 230, and longitudinally (and orthogonally) retains the exterior housing 170 of the air conditioning-heating unit 110 to the interior wall 404. The pivoting exterior support section 240 comprises a retention rail 242 configured to engage the receiver 172 of the exterior housing 170 of the air conditioning-heating unit 110 over a range of vertical and longitudinal positions during the transition of the pivoting exterior support section 240 between the setup position and the installed position to retain the exterior housing 170 of the air conditioning-heating unit 110 to the pivoting exterior support section 240.

The spring 250 is configured to bias the pivoting exterior support section 240 toward the setup position and to moderate the transition of the pivoting exterior support section 240 into the installed position due to the weight of the exterior housing 170 of the air conditioning-heating unit 110 over the pivoting exterior support section 240. The spring 250 is also configured to support the return of the pivoting exterior support section 240 to the setup position, against the weight of the exterior housing 170 of the air conditioning-heating unit 110, during the withdrawal of the exterior housing 170 of the air conditioning-heating unit 110 via the handle 174. In one variation, the longitudinal frame section 220 and/or interior frame section 210 also includes adjustable feet configured to enable a user to level the system, such as on a non-square window frame.

In one implementation, the first interior vertical frame element 212 of the interior frame section 210 and the first longitudinal frame element 222 of the longitudinal frame section 220 define a unitary structure, such as folded, formed, and/or stamped sheet metal (e.g., 16g steel) to form an inverted L-shaped geometry. The first interior vertical frame element 212 can define a vertical array of through-bores on its lateral face—such as on 1″ or 2″ centers. The first side of the interior cross-member 216 can assemble onto the first interior vertical frame element 212 via a set of fasteners (e.g., bolts, screws) inserted into a subset of these through-bores at a position that locates the interior cross-member 216 below (and snug against a bottom edge of) an interior apron of the window. The first longitudinal frame element 222 can similarly define a longitudinal array of through-bores on its lateral face—such as on 1″ or 2″ centers. The first side of the exterior frame section 230 can assemble onto the first longitudinal frame element 222 via fasteners (e.g., screws, bolts) inserted into a particular subset of these through-bores that longitudinally offset the exterior frame section 230 from the interior frame section 210 by a distance sufficient to span the depth (or “thickness”) of the wall below the window.

The second interior vertical frame element 214 and the second longitudinal frame element 224 can define a similar (i.e., mirrored) structure, geometry, and material and can be similarly configured to mount to the second side of the interior cross-member 216 and to the second side of the exterior frame section 230.

Therefore, the interior vertical frame elements and the longitudinal frame elements can both include arrays of through-bores on target pitch distances to enable assembly with the interior cross-member 216 and the exterior frame section 230, respectively, over ranges of positions that accommodate various combinations of wall thicknesses and interior window trim configurations.

In some examples, the exterior frame section 230 comprises first and second semilune (or square-C-shaped) elements and an exterior cross-member 246. The exterior cross-member 246 fastens to and extends laterally across the distal ends of the first and second semilune elements. Proximal ends of the first and second semilune elements fasten to longitudinal frame elements of the longitudinal frame section 220.

For example, the proximal ends of the first and second semilune (or square-C-shaped) elements can each include a pair of through-bores on a pitch equivalent to the pitch distance between through-bores along the first and second longitudinal frame elements 224. The low-profile window-mountable climate control system 100 can further include a set of (e.g., four) threaded fasteners configured to: assemble through these through-bore pairs in the first and second semilune elements and through corresponding pairs of through-bores in the longitudinal frame elements, and to longitudinally offset the exterior cross-member 246 (arranged on the distal ends of the first and second semilune elements) from the interior cross-member 216 (arranged on the interior frame section 210) by a distance slightly (e.g., less than 1.0″) greater than a thickness of the wall under the window.

Generally, the interior cross-member 216 functions to distribute a load applied by the low-profile window-mountable climate control system 100 across a breadth of the interior wall 404 below the window in order to avoid small-area or point loading that may damage or puncture the interior wall 404. The interior cross-member 216 defines a width of at least 16″ wide (or otherwise narrower than the air conditioning-heating unit 110) such that the interior cross-member 216 nominally locates over at least one cripple stud located on 16″ centers under the window for retrofit of the low-profile window-mountable climate control system 100 in drywall-over-wood framing construction. The interior cross-member 216 can similarly abut and carry the load of the low-profile window-mountable climate control system 100 into a plaster-over-lathe wall over wood framing construction, a masonry wall, etc. Therefore, the interior cross-member 216 can interface the frame and the low-profile window-mountable climate control system 100 as a whole to an interior wall 404 of any (unknown) construction type—such as masonry, drywall over wood framing, or plaster over wood framing—by spreading the load of the low-profile window-mountable climate control system 100 across a larger width and total area of the interior wall 404, thereby eliminating small-area or point loading that may damage the interior wall 404 and loosen the mounting frame 200 from the wall.

Additionally or alternatively, the cross-member can be configured to locate against an apron or sill of the window rather than rest directly against the interior wall 404 below the window. Yet alternatively, the cross-member can include a set of (e.g., two) laterally offset pads configured to locate directly against the wall under the apron of the window.

The interior cross-member 216 is adjustably arranged on the interior frame section 210 of the mounting frame 200 to enable the interior cross-member 216 to be driven longitudinally toward the wall and thus “clinch” the system to the wall between the interior cross-member 216 and the exterior feet 232. For example, the interior cross-member 216 can be coupled to the first and second interior vertical frame elements 214 of the interior frame section 210 via a set of eccentric fasteners or cams such that rotation of these fasteners or cams drives the interior cross-member 216 longitudinally forward toward the wall, thereby clinching the wall between the interior cross-member 216 and exterior feet 232 and retaining the mounting frame 200 on the wall. The interior cross-member 216 can be designed such that the adjustment points for driving the interior cross-member 216 toward the wall (e.g. the screw heads) are accessible after the mounting frame 200 has been hung over the wall.

In one variation, the interior frame additionally or alternatively includes adjustable interior feet located below the interior cross-member 216 and configured to contact the wall below the interior cross-member 216 to prevent the system from tipping, such as responsive to a user leaning or sitting against the interior housing 130.

In some examples, the exterior feet 232 comprises a first exterior foot configured to install on the distal (i.e., lower) end of the first semilune element of the exterior frame section 230 over a range of depth positions. For example, the first exterior foot can include: an elastomeric pad configured to rest against the exterior wall 406; and a tongue extending rearward from the elastomeric pad and defining an array of through-bores. The distal end of the first semilune element can include a corresponding set of through-bores. The first exterior foot can thus be assembled onto the distal end of the first semilune element over a range of positions via a threaded fastener installed in corresponding through-bores of the first exterior foot and the first semilune element. The first exterior foot can alternatively be rigidly integrated into the exterior frame section 230 or pivotably and/or extensibly arranged on the exterior frame section 230. The low-profile window-mountable climate control system 100 can include a similar second exterior foot.

In one variation, the low-profile window-mountable climate control system 100 comprises a kit of exterior feet 232, each configured to interface the exterior frame section 230 to a different type or geometry of exterior wall 406. For example, the low-profile window-mountable climate control system 100 can include multiple types of exterior feet 232. A first pair of exterior feet 232 may define a first contact area configured to rigidly fasten onto the exterior frame section 230 parallel to the interior cross-member 216. The first pair of exterior feet 232 may be configured to interface the low-profile window-mountable climate control system 100 to flat stucco, brick, and other masonry exterior facades and board and batten exterior facades. A second pair of exterior feet 232 may define a second contact area-greater than the first contact area-configured to locate and pivot on the exterior frame section 230 over a range of angular positions from 75° to 90°. The second pair of exterior feet 232 is configured to interface the low-profile window-mountable climate control system 100 to one row of solid wood or composite exterior lap siding. The second pair of exterior feet 232 is also configured to spread the load of the low-profile window-mountable climate control system 100 across this single row of lap siding. In some examples, a third pair of exterior feet 232 may define a third contact area-greater than the first and second contact areas and defining two staggered contact regions-configured to locate and pivot on the exterior frame section 230 over a range of angular positions from 75° to 90°. The third pair of exterior feet 232 may be configured to interface the low-profile window-mountable climate control system 100 to two rows of hollow aluminum or composite exterior lap siding. The third pair of exterior feet 232 may be configured to spread load of the low-profile window-mountable climate control system 100 across this multiple row of lap siding.

The first and second housing retention rails 242 are pivotably coupled to the upper-outer corners of the first and second semilune elements of the exterior frame section 230, such as via shoulder bolts. The first and second housing retention rails 242: define elongate linear sections of a “L” cross-sectional geometry and extend parallel to the first and second longitudinal frame elements 224 in the setup position; are configured to engage corresponding first and second receivers 172 arranged on an inner face of the exterior housing 170 of the air conditioning-heating unit 110 (i.e., a face of the exterior housing 170 facing the interior housing 130 in the lowered position); and include mechanical stops (or “limits”) configured to obstruct translation of the exterior housing 170 of the air conditioning-heating unit 110 past the pivoting exterior support section 240.

The low-profile window-mountable climate control system 100 also includes: a first spring 250 (e.g., a gas spring 250) extending between the first semilune element of the exterior frame section 230 and the first housing retention rail 242 of the pivoting exterior support section 240; and a similar second spring 250 extending between the second semilune element of the exterior frame section 230 and the second housing retention rail 242 of the pivoting exterior support section 240. The first and second springs 250 bias the pivoting exterior support section 240 toward the setup position in which the first and second housing retention rails 242 are parallel to and aligned with the first and second longitudinal frame sections 220 of the longitudinal frame element.

Accordingly, with the pivoting exterior support section 240 located in the setup position by the set of springs 250, a user may slide the air conditioning-heating unit 110—with the exterior housing 170 pinned to the bridge housing 150 in the raised position—along the first and second longitudinal frame sections 220 toward the pivoting exterior support section 240. As the air conditioning-heating unit 110 moves toward the pivoting exterior support section 240, the first and second housing retention rails 242 insert into corresponding receivers 172 on the rear face of the exterior housing 170 to vertically constrain the exterior housing 170 to the pivoting exterior support section 240. The user may then withdraw locking pins (e.g., quick-release pins, spring-based locks, tamper-proof key locks, keylock pins, quick-release buttons) from the exterior housing 170 or otherwise release the exterior housing 170 to pivot downwardly on the bridge housing 150. Release of these locking pins shifts the weight of the exterior housing 170 onto the pivoting exterior support section 240 and thus into the springs 250, which then compress and enable the exterior housing 170 and the pivoting exterior support section 240 to pivot downwardly toward the lowered position and the installed position, respectively.

In particular, the exterior housing 170 pivots on the bridge housing 150 about an axis offset above an axis about which the pivoting exterior support section 240 pivots on the exterior frame section 230. Thus, the first and second housing retention rails 242 may withdraw (e.g., by ˜10% of the length of the housing retention rails 242) from the corresponding receivers 172 on the rear face of the exterior housing 170 as the exterior housing 170 and the pivoting exterior support section 240 pivot downwardly into the lowered position and the installed position, respectively.

Therefore, the first and second housing retention rails 242 can function to constrain the exterior housing 170 in multiple degrees of freedom, such as excluding longitudinal translation in the setup position and excluding vertical translation in the installed position. The mechanical stops on the first and second housing retention rails 242 can: constrain the exterior housing 170 in longitudinal translation in the setup position if the air conditioning-heating unit 110 is driven too far out from the window on the mounting frame 200; and constrain the exterior housing 170 in vertical translation in the installed position to prevent the exterior housing 170 from falling from the pivoting exterior support section 240 given a mechanical failure elsewhere within the low-profile window-mountable climate control system 100.

Furthermore, in some examples, the first (and/or second) housing retention rail 242 can include a serrated edge that contacts and vibrates a tab on the exterior housing 170 as the air conditioning-heating unit 110 is loaded onto the mounting frame 200 and driven out of the window. The serrated edge of the first (and/or second) housing retention rail 242 can thus cooperate with this tab to provide haptic and/or audible feedback indicating correct alignment of the air conditioning-heating unit 110 on the mounting frame 200 as the user drives the air conditioning-heating unit 110 out of the window. However, the system can include any other visual marker and/or audible indicator configured to indicate the alignment of the air conditioning-heating unit 110 on the mounting frame 200. For example, the back face of the exterior housing can include a concave portion or portions that surrounds the installation bracket during installation and prevents the outdoor unit from being slid outwards during installation if it is misaligned.

In further examples, the first and second housing retention rails 242 each include a shoulder pin extending upwardly from the pivoting exterior support section 240 in the setup position, and the exterior housing 170 includes T-slot receivers 172 on its inner face that align to and located over these shoulder pins (or vice versa). The shoulder pins can thus interface with the T-slot receivers 172 to constrain the exterior housing 170 in five degrees of freedom-excluding longitudinal translation in the setup position and excluding vertical translation in the installed position. Furthermore, the T-slot receivers 172 can be open on a distal (or bottom) end of the exterior housing 170 but closed near the proximal (or top) end of the exterior housing 170 and can thus further function as mechanical stops that: constrain the exterior housing 170 in longitudinal translation in the setup position; and constrain the exterior housing 170 in vertical translation in the installed position.

FIGS. 4A-4B: Window-Frame Seals

Referring to FIGS. 4A-4B, in some examples, the window-frame seal 300 comprises a center seal module 310, a channel foam 340, and, optionally, one or both a first side seal module 320 and a second seal module 330. In some examples, the window-frame seal 300 further comprises side foam units 360, e.g., that may directly interface the window frame 414. When used, the first side seal module 320 and second seal module 330 are configured and assembled during the installation of the low-profile window-mountable climate control system 100, e.g., using a kit of rigid side blocks 350 (e.g., based on the width of the window opening 419 as further described below). The window-frame seal 300 is positioned and seals the interfaces between the window frame 414 and a combination of the bridge housing 150 and the mounting frame 200. Referring to FIG. 4A, the first-sash bulb seal 390 and/or a sash-facing seal 391 seals the interface between the first sash 411 and the bridge housing 150. Finally, the inter-sash bulb seal 392 seals the interface between the first sash 411 and the second sash 412.

Referring to the window-frame seal 300, the channel foam 340 may be first positioned on windowsill 415 or, more specifically, into the cavity of the windowsill 415 that was configured to receive the first sash 411. The center seal module 310 may be attached to the mounting frame 200 before installation of the mounting frame 200 within the window opening 419. During the installation of the mounting frame 200, channel foam 340 is compressed into the cavity of the windowsill 415 such that the bottom rubber seal 318 can make contact with the windowsill 415. During the installation of the air conditioning-heating unit 110 onto the mounting frame 200, the bridge housing 150 and longitudinal frame sections 220 are sealed against the center seal module 310, e.g., using weatherstripping piles 319 of the center seal module 310 (and also against the mounting frame 200). After the installation of the air conditioning-heating unit 110, the first side seal module 320 and the second seal module 330 are assembled from the rigid side blocks 350 to fill the space and seal the interfaces between the center seal module 310 and the sides of the window frame 414. Specifically, the inner-most rigid side blocks 350 (of the first side seal module 320 and the second seal module 330) may interlock with the center seal module 310 or, more specifically, with the first shell side 315 and the second shell side 316 of the center seal module 310. The remaining rigid side blocks 350 (in each of the first side seal module 320 and the second seal module 330 are interconnected with each other). The outermost rigid side blocks 350 interface the side foam units 360 that are used to seal the remaining gaps between the seal modules are the window frame 414. In some examples, the width of each side foam unit 360 (in the installed configuration, e.g., compressed) may be smaller than the width of the narrowest rigid side block 350, thereby minimizing the non-rigid gap filler (unlike conventional systems that use foam units to fill the entire gap between the bridge and the window frame).

The center seal module 310 comprises a center seal shell 311, which may be made of rigid plastic to maintain its shape and support other components. For example, the center seal module 310 may also comprise weatherstripping pile 319, which is supported by the center seal shell 311 and used to seal the center seal module 310 against the bridge housing 150 (FIG. 4B) and the mounting frame 200 (FIG. 4A, showing the weatherstripping piles 319 extending through the first frame seat 312 and the second frame seat 314).

Referring to FIG. 4A, the center seal shell 311 comprises a first frame seat 312, a second frame seat 314, and a center portion 313 positioned between the first frame seat 312 and the second frame seat 314. Specifically, the first frame seat 312 is configured to be located under and to fasten to the first longitudinal frame element 222 of the mounting frame 200. The second frame seat 314 is laterally offset from the first frame seat 312 and configured to locate under and to fasten to the second longitudinal frame element 224 of the mounting frame 200. The center portion 313 is configured to position over and seal against the windowsill 415 or window frame 414 or, more specifically, against the upward-facing surface of the windowsill 415 or window frame 414, e.g., using the channel foam 340 as shown in FIG. 4B. In some examples, the center seal module 310 comprises a bottom rubber seal 318 that interfaces with the channel foam 340 that is placed within the slot of the window frame 414. Furthermore, the center seal module 310 (e.g., using weatherstripping piles 319) is configured to seal against the downward face surface of the bridge housing 150.

Referring to FIG. 4A, the center seal shell 311 comprises a first shell side 315 (positioned proximate to the first frame seat 312) and a second shell side 316 (positioned proximate to the second frame seat 314). Both the first shell side 315 and the second shell side 316 extend perpendicular to the center portion 313, terminate with a top edge 317 that is flush with the top surface of the bridge housing 150, and are sealed against the side walls of the bridge housing 150 (e.g., using weatherstripping piles 319).

The first shell side 315 is coupled to the first side seal module 320, which may be formed using one or more rigid side blocks 350. Specifically, the types and number of rigid side blocks 350 are selected to fill the gap between the first shell side 315 and the side of the window frame 414. The first side seal module 320 defines a downward-facing surface configured to seal against the windowsill 415 or window frame 414. Furthermore, the first side seal module 320 defines a first top surface that is flush with the top surface of the bridge housing 150 and interfaces a first-sash bulb seal 390. The first side seal module 320 also defines a frame-facing surface that interfaces the side foam unit 360. The second seal module 330 has a similar configuration and surfaces.

In some examples, the center seal module 310 and each of the rigid side blocks 350 define a unitary structure, such as an injection or roto-molded structure. Alternatively, the center seal module 310 includes a rigid (e.g., steel) plate with threaded bores or threaded inserts located at the first and second frame seats. In further example, a first side seal module 320 and/or second seal module 330 is a unitary structure, such as injection or roto-molded polymer, and extends vertically over a height approximating the height of the bridge housing 150.

Rigid side blocks 350 may be provided as a kit each having a width (selected from one or more width options). Each one or more rigid side blocks 350 is configured to cooperate with two side blocks, a side block and one of the first shell side 315 and second shell side 316, a side block and a side foam unit 360, or a side foam unit 360 and one of the first shell side 315 and second shell side 316. In some examples (when the window is particularly narrow), a side foam unit 360 may directly cooperate with one of the first shell side 315 and second shell side 316 (i.e., rigid side blocks 350 are not used to form one or both of the first side seal module 320 and the second seal module 330). Each side block 350 defines a width in a set of widths (e.g., 0.5″, 1″, and 2″ widths) and defines a secondary outer seal module interface. These rigid side blocks 350 are selectively assemblable onto one of the first shell side 315 and, separately, onto the second shell side 316. Specifically, the rigid side blocks 350 are configured to cooperate with each other to fill a gap between the first shell side 315/second shell side 316, and the sides of the window frame 414.

Overall, the center portion 313 is a rigid part configured to fill the majority of the space between the bridge housing 150 and the windowsill 415 or window frame 414 (in addition to the channel foam 340). The center portion 313 or, more generally, the center seal shell 311 is configured to embed and support compliant materials (e.g. pile weatherstripping, wiper seals, bulb seal; generally identified as weatherstripping piles 319 in FIGS. 4A-4B) attached to the upward-facing perimeter of the rigid part that make an air- and water-tight seal to the bridge housing 150 while permitting relative motion of the bridge housing 150 and the center seal module 310 in a longitudinal direction. Furthermore, the center portion 313 is configured to embed compliant materials (e.g. rubber sheet, hollow foam generally identified as a bottom seal 318 in FIGS. 4A-4) attached to the downward-facing perimeter of the center portion 313 that make an air- and water-tight seal to the channel foam 340 and/or the windowsill 415.

In some examples, one lateral side of an outer side block 350 can define an internal (square or tapered) dovetail, and an opposing lateral side of the outer side block 350 can define an external dovetail. Each side of the outer side block 350 can thus: slide onto and can be retained by the corresponding external or internal (square or tapered) dovetail of an adjacent first or second outer side-block interface or of an adjacent outer seal module.

The user may therefore: assemble the first side seal module 320 and the second seal module 330 onto the center seal module 310 to form a primary seal module; selectively install rigid side blocks 350 of the same or different widths onto one or both sides of the primary seal module to extend the lateral length of the primary seal module to approximate the width of the window jam, such as to within a width tolerance −0.1″ to −0.3″ of the width of the window jam; adhere compressible seals to the bottom and lateral sides of this window frame seal assembly; fasten the mounting frame 200 to the first and second frame seats of the center seal module 310; install the mounting frame 200 through the window; install the air conditioning-heating unit 110 on the mounting frame 200, as described above; install a compressible seal across a bottom rail (or sash) of the lower window element in the window; and close this lower window element to seal the lower window element against the top surfaces of the bridge housing 150 and the window frame seal assembly.

Rigid side blocks 350 may be in the form of rigid external structures, such as to prevent damage or through-bore by rodents; and include internal insulative structures or elements. For example, each side block 350 may comprise a rigid polymer shell with an egg crate or coffered internal structure molded in situ with the rigid polymer shell. The egg crate or coffered internal structure can trap internal air pockets that thermally insulate the interior-facing surface of the rigid polymer shell from the exterior-facing surface of the rigid polymer shell. The open face(s) of coffered internal structures can also be enclosed with a rigid or flexible polymeric cap. For example, compliant materials (e.g. rubber sheet, hollow foam) can be attached to the downward-facing surface of each side block 350 to form an air- and water-tight seal against the window frame.

In some examples, each side block 350 comprises a rigid hollow polymer shell; and a discrete foam insert inserted into the interior hollow volume of the shell of the hollow polymer shell. In this implementation, the discrete foam insert forms a sealing surface against the window frame and additional thermal insulation to reduce heat leakage between the indoor and outdoor spaces.

In some examples, a window-frame seal 300 or, more generally, a low-profile window-mountable climate control system 100 comprises one or more cut-to-size window frame seal, such as channel foam 340, a first-sash bulb seal 390, a sash-facing seal 391, and an inter-sash bulb seal 392 (e.g., as shown in FIG. 4B). The cut-to-size window frame seal includes: a single cut-to-size seal module that can be reduced in size to fit into any width of window within a definite range (e.g. 26″-40″ inner width). The cut-to-size seal module can be adjusted in width by a user in a subtractive fashion (e.g. cutting, breaking, folding, etc.) to fit into the user's window.

The window frame seal is adjustable in width to fit a range of window sizes and can be of a modular (e.g., additively-adjustable) type or a cut-to-size (reduceably-adjustable) type. Alternatively, the window frame seal could be additively adjustable or reducably adjustable offsite, for example via 3D printing in the former case or laser cutting in the latter case.

FIG. 5: System Installation Methods

FIG. 5 is a process flowchart corresponding to method 500 of installing a low-profile window-mountable climate control system 100 through a window opening 419 in a building wall 400. Various examples and features of the low-profile window-mountable climate control system 100 are described above.

Method 500 may commence with (block 510) configuring the mounting frame 200. For example, the first step of this mounting operation may involve positioning the channel foam 340 into a bottom channel in the window frame 414 (e.g., as shown in FIG. 6A). The channel foam 340 may include several layers that allows for adjusting the height/thickness of the channel foam 340 to accommodate the different sizes of the bottom channel.

The mounting operation may involve attaching the interior cross-member 216 (comprising the sill tighteners 215) to each of the first interior vertical frame element 212 and the second interior vertical frame element 214. For example, the selection of the holes on the frame elements determines the vertical position of the sill tighteners 215 (e.g., to align with the contact points on the interior wall 404 (e.g., the window apron 416). This frame configuring operation may also involve attaching (or at least repositioning) the exterior feet 232 relative to their supports on the exterior frame section 230. The position may depend on the thickness of the building wall and the future location of the window-frame seal 300 (determined by the location of the first sash 411 contacting the windowsill 415). A set of holes in the exterior feet 232 may be used to provide this alignment.

The frame configuring operation may involve attaching the first horizontal frame element 217 to the first longitudinal frame element 222 and attaching the second horizontal vertical frame element 218 to the second longitudinal frame element 224. The selection of the corresponding holes in these elements depends on the wall width or, more specifically, on the distance between the exterior wall 406 (to be contacted by the exterior feet 232) and either interior wall 404 or the window apron 416 (to be contacted by the sill tightener 215). Specifically, the sill tighteners 215 may provide the finer/final adjustment of the gap.

The above-referenced attachment operation may be performed while various components of the mounting frame 200 are already positioned through the window 410, e.g., the interior frame section 210 and exterior frame section 230 may be interconnected by a safety lanyard (but not bolted together as described in the above-referenced attachment operation). This subassembly is then set in the window, and the interior frame section 210 and exterior frame section 230 are slid together until the tops of these sections are leveled and the position of the exterior feet 232 and the sill tighteners 215 are proximate or in contacts with the building wall 400. The attachment operation is then completed by putting the screws through the sides of these sections to fasten level. Modular-frame seal 300 is then attached to frame section 220 in the position for sealing against the window frame. This example may be referred to as an in-situ configuration of the mounting frame 200 over the windowsill 415. Method 500 then proceeds with block 530. Alternatively, the attachment operation may be performed before positioning the pre-configured mounting frame 200 through the window 410, based on various measurements, e.g., thickness of the building wall 400, protrusions, and the like.

Generally, during installation of the low-profile window-mountable climate control system 100 within the window, the user may: assemble seal modules 370 of the window-frame seal 300 to form a window frame seal assembly sized for a width of the window frame; locate a sill seal across a bottom face of the window-frame seal 300; assemble and configure the mounting frame 200 for the thickness of the wall under the window; fasten the window frame seal assembly to the first and second longitudinal frame elements 224 of the longitudinal frame section 220 of the mounting frame 200; install the mounting frame 200 and window-frame seal 300 assembly onto the wall below and through the window such that the window frame seal assembly intersects a vertical plane through a bottom rail (or sash) of a lower window element of the window (e.g., as shown in FIG. 6B). The process continues with driving the interior cross-member 216—mountable on the interior frame section 210 of the mounting frame 200—or, more specifically, the sill tighteners 215 toward the interior wall below the window (or toward the apron of the window) to clinch the wall between the inner cross-member and the exterior feet 232 of the mounting frame 200 (e.g., as shown in FIG. 6C).

Thus, the exterior surface of the air conditioning-heating unit 110 can be: sealed against the window sill below via the sill seal; sealed against the first and second seal module 330 on its first and second sides; and sealed against the lower window element along its top face via the window seal on a first vertical plane that intersects the bottom rail of the lower window element of the window. However, the insulator within the bridge housing 150 can span the interior cavity across a second vertical plane offset from and decoupled from (e.g., unrelated to) the first vertical plane.

Once the mounting frame 200 is configured, method 500 may proceed with (block 530) securing the mounting frame 200 to the building wall 400, with the interior cross-member 216 or, more specifically, the sill tighteners 215 seated against the interior wall 404 (e.g., the window apron 416) and the exterior feet 232 resting against the exterior wall 406 (e.g., as shown in FIG. 6C). The spring-loaded pivoting exterior support section 240 is initially held in a raised (setup) position during this stage.

In some examples, method 500 comprises (block 540) adjusting the length of the bridge housing 150. Specifically, the bridge housing 150 extends from a distal side of interior housing 130 and defines the interior cavity 152. The bridge housing 150 comprises a bridge rail 156 operable between a retracted bridge position and an extended bridge position to accommodate a range of depths of the window and an insulator spanning the interior cavity across a vertical plane adjacent to the interior housing 130.

In some examples, the bridge housing 150 comprises first and second bridge rails 156 that extend parallel to each other and longitudinally from the interior housing 130 (or from an internal chassis within the interior housing 130). The bridge housing 150 comprises a set of covers configured to locate around the first and second bridge rails 156 to enclose an interior cavity. Finally, the bridge housing 150 comprises a bridge insulator 158 (e.g., a cast foam structure) spanning the interior cavity 152 across a vertical plane adjacent to the interior housing 130 and configured to prevent air, water, dust, and thermal exchange between the interior housing 130 and the bridge housing 150.

Furthermore, the first and second bridge rails 156 are extensible over a range of lengths in order to accommodate a range of thicknesses of the wall below the window. In one example, the first bridge rail 156 includes a pair of nested inner and outer C-channel sections, such as formed in steel sheet metal. The outer C-channel section can include a single pin bore, such as proximal to the interior housing 130. The inner C-channel section can include a set of lateral-facing through-bores located on a pitch distance equal to the pitch distance of through-bores on the longitudinal frame section 220 of the mounting frame 200 (e.g., 1″). The outer C-channel section can thus be pinned to any one of the through-bores in the inner C-channel section to control the total length of the first bridge rail 156. For example, the inner C-channel section can: nest and run within the outer C-channel section; include nine lateral-facing through-bores on 1″ centers; and thus enable the first bridge rail 156 to extend by up to 8″ and to lock in 1″ length increments between the retracted bridge position and the extended bridge position, such as via insertion of a quick-release pin into corresponding through-bores in the inner and outer C-channel sections.

The second bridge rail 156 can be similarly assembled. The longitudinal frame section 220 of the mounting frame 200 can include a similar array of through-bores on a similar pitch to enable the exterior frame section 230 to extend by up to 8″ in 1″ increments on the longitudinal frame section 220 of the mounting frame 200 to accommodate the length of the bridge housing 150 and the thickness of the wall on which the low-profile window-mountable climate control system 100 is mountable.

In another implementation, the first bridge rail 156 can include a pair of nested inner and outer C-channel sections with single coaxial through-bores configured to receive a quick-release pin that locks the first bridge rail 156 in a shortest length configuration. The second bridge rail 156 can define a similar structure. In this implementation, the lengths of the bridge rails 156 can remain unconstrained in length following assembly of the low-profile window-mountable climate control system 100. Therefore, the bridge housing 150 can be assembled over a range of lengths on gross (e.g., 1″) intervals to accommodate a range of wall thicknesses below the window. Alternatively, the bridge housing 150 can be assembled over a continuous range of lengths to accommodate a range of wall thicknesses below the window.

Method 500 proceeds with (block 550) positioning the air conditioning-heating unit 110 onto the mounting frame 200 with the bridge housing 150 resting on the longitudinal frame section 220 and the interior and exterior housings 130 and 170 supported on opposite sides of the wall (e.g., as shown in FIGS. 6D-6E). Specifically, this positioning operation may involve (a) transitioning the exterior housing 170 to the raised position and insert quick-release pins into raised pin receivers 172 of hinge plates on the exterior housing 170 to retain the exterior housing 170 in the raised position; (b) setting the exterior housing 170 on the interior frame section 210; (c) driving (or “push”) the air conditioning-heating unit 110 forward out of the window until the interior housing 130 bottoms on the interior frame section 210 of the mounting frame 200; (d) withdrawing quick-release pins from the first and second bridge rails 156 of the bridge housing 150; and (e) driving the exterior housing 170 forward toward the pivoting exterior support section 240 until the receivers 172 of the exterior housing 170 bottoms on the mechanical stop on the pivoting exterior support section 240, thereby extending bridge rails 156 and the bridge housing 150 and unfurling the fluid supply line, the fluid return line, the electrical harness, and/or the condensate line within the bridge housing 150, as described below. The quick-release pins may be returned to the corresponding through-bores in the first and second bridge rails 156 in order to constrain the lengths of the first and second bridge rails 156.

Specifically, this positioning operation may further involve (a) withdrawing quick-release pins from the raised pin receivers 172 of hinge plates on the exterior housing 170; and (b) pushing the exterior housing 170 forward, thereby applying a torque to the exterior housing 170 and compressing the springs 250. Because the springs 250 are pinned to the pivoting exterior support section 240 at a first distance from the pivot axis and pinned to the exterior frame section 230 of the mounting section at a second distance-greater than the first distance-below the pivot axis, initial compression of the springs 250 and rotation of the pivoting exterior support section 240 decreases an effective length of the lever arm of the springs 250 such that the springs 250 continue to (slowly, “gently”) yield to weight of the exterior housing 170 and thus (slowly, “gently”) lower the exterior housing 170 into the lowered position and the pivoting exterior support section 240 into the installed position. The user may then insert the quick-release pins into lowered pin receivers 172 of hinge plates on the exterior housing 170 to retain the exterior housing 170 in the lowered position and fasten the interior housing 130 (or the bridge housing 150) to the mounting frame 200, such as by: inserting a first screw through a through-bore on a first side of the interior housing 130—adjacent an inner apex between the interior housing 130 and bridge housing 150—into a corresponding threaded bore on the first side of the mounting frame 200; and inserting a second screw into similar bores on the second side of the interior housing 130 and the mounting frame 200. A cover plate may be then installed over an exposed region of a distal end of the bridge housing 150 (i.e., a section of the bridge housing 150 that is extended to accommodate the thickness of the wall) to complete the installation of the air conditioning heating unit 110.

For removing the air conditioning-heating unit 110 from the mounting frame 200, the positioning operations described above may be reversed. In particular, when raising the exterior housing 170 back into the raised position after removing quick-release pins from hinge plates on the exterior housing 170, the user may grasp the grab handle 174 on the exterior housing 170 (e.g., integral with an outer front face of the exterior housing 170) and pull the exterior housing 170 inwardly. Springs 250 can assist the user in rotating the exterior housing 170 back into the raised position and then fully support the exterior housing 170 once in the raised position. The user may then install the quick-release pins into raised pin receivers 172 of hinge plates on the exterior housing 170 to retain the exterior housing 170 in the raised position before continuing with removal.

Method 500 proceeds with (block 570) pivoting the exterior housing 170 downward about the pivot axis 111 relative to the bridge housing 150 as, e.g., schematically shown in FIGS. 6E-6F. This operation is performed until the longitudinal frame section 220 nests against the exterior wall and engages the retention rail 242 of the pivoting exterior support section 240. During this pivoting motion, the flexible fluid lines within the bridge housing 150 twist and extend without mechanical interference.

For example, the distal end of the first bridge rail 156 of the bridge housing 150 comprises (a) a first kingpin extending laterally along a pivot axis, (b) a first pivot stop offset from the first kingpin, and (c) a first pin receiver (e.g., a blind or through-bore) offset from the first kingpin and the first pivot stop. The first upper-inner corner of the exterior housing 170 includes a first hinge plate that defines (a) a first pivot receiving and rotating about the first kingpin, (b) a first semi-circular slot spanning a 90° arc segment, configured to run about the first pivot stop as the exterior is transitioned between the raised position and the lowered position, and configured to stop against the first pivot stop in response to the exterior housing 170 entering the raised position and the lowered position; a first raised pin receiver configured to align with the first pin receiver and to receive a quick-release pin to lock the exterior housing 170 in the raised position; and a first lower pin receiver configured to align with the first pin receiver and to receive the quick-release pin to lock the exterior housing 170 in the lowered position. The distal end of the second bridge rail 156 of the bridge housing 150 can include similar features, and the second upper-inner corner of the exterior housing 170 can include a similar hinge plate defining similar features and configured to similarly interface with the second bridge rail 156. In another implementation, the system includes quick-release buttons, knobs on sliders, or other mechanical latches in place of quick-release pins. Therefore, the bridge housing 150 and/or the exterior housing 170 can include integrated pivot stops and can be selectively locked in the raised position and the lowered position via quick-release pins (or other fasteners).

Method 500 proceeds with (block 590) sealing the window opening 419 around the bridge housing 150 or, more specifically, fill the gaps between the first shell side 315 and second shell side 316 and the sides of the window frame 414. Specifically, a set rigid side blocks 350 is configured to fill these gaps as much as possible (as explained above) with the side foam unit 360 positioned in the remainders of these gaps (e.g., as shown in FIGS. 6G and 6H). As described above, the rigid side blocks 350 may be provided as a kit having different widths and interlocking features, allowing the rigid side blocks 350 to interlock with each other and the center seal module 310. The blocks are selected and interlocked such that the spacing between the window frame 414 and the center seal module 310 is filled as much as possible by the rigid side blocks 350. However, in some examples (e.g., when the window opening is small), the rigid side blocks 350 are not used (e.g., when the gap between the center seal module 310 and the window frame 414 is smaller than the smallest of the rigid side blocks 350). In this example, the gap between the center seal module 310 and the window frame 414 is filled entirely by the side foam unit 360.

Referring to FIG. 6H, in some examples, the side foam unit 360 may comprise a side-foam-unit base 362 and plastic covers 364. The side-foam-unit base 362 may be in the form of multiple units, loosely attached to each other, allowing to tear some components to accommodate the remaining gap (e.g., between the rigid side blocks 350 and window frame 414 or even between the center seal module 310 and the window frame 414). Once the side-foam-unit base 362 is sized, the plastic covers 364 are then attached to the sides of the side-foam-unit base 362 (the sides facing the window frame 414 and the center seal module 310). These plastic covers 364 ensure that the side-foam-unit base 362 can be slid into the remaining gap (while being compressed) thereby ensuring the tight seal in the remaining gap. Compression indicates that the gap is completely filled. In some examples, a tape is attached over the side foam unit 360 and the corresponding set of the rigid side blocks 350. The tape may extend over the bridge housing 150. Furthermore, a hinge cover may be installed at this stage over the pivot mechanism 160.

A first-sash bulb seal 390 may be then attached to the bottom of the first sash 411, while a sash-facing seal 391 may be attached to the bridge housing 150 (and aligned with the first sash bulb seal 390, e.g., as shown in FIGS. 4B and 6I). In some examples, the sash-facing seal 391 and first-sash bulb seal 390 are cut to size (e.g., based on the width of the first sash 411. Furthermore, the inter-sash bulb seal 392 may be positioned between the first sash 411 and the second sash 412 (e.g., as shown in FIGS. 4B and 6J).

Applications

Generally, the low-profile window-mountable climate control system 100 functions as a window-mountable air conditioning-heating unit 110 and includes: an air conditioning-heating unit 110; a mounting frame 200; and a window-frame seal 300.

The air conditioning-heating unit 110 includes: an exterior housing 170 containing a heat pump and pivotable between raised and lower positions; an interior housing 130 containing a fluid-to-air heat exchanger; and a low-profile (e.g., between 2″ and 5″-tall) extensible bridge that connects the interior housing 130 and the exterior housing 170, houses extensible fluid supply and return lines that thermally couple the heat pump to the fluid-to-air heat exchanger, and minimally affects sight lines through the window. Furthermore, because the depth of the exterior housing 170 may be shallower than its height, the system can be installed on lower-height windows bypassing the exterior housing 170 through the window while in the raised position before being pivoted into a final lowered position.

The mounting frame 200: is configured to install under and through a window and to cinch against the wall; is configured to assemble over a range of depths to accommodate a range of wall thicknesses and construction types; and includes a pivoting exterior support section 240 configured to support and guide the exterior housing 170 from the raised position into the lowered position during installation of the air conditioning-heating unit 110 on the window.

The window-frame seal 300: is configured to assemble into a range of widths to accommodate a range of window widths; and seals the mounting frame 200 and the air conditioning-heating unit 110 to the adjacent window sill, window frame, and bottom rail of the adjacent window element to thermally isolate an interior environment from an external environment at the window and to prevent ingress of moisture, air, dust, and rodents through the window.

The air conditioning-heating unit 110, the mounting frame 200, and the window-frame seal 300 thus cooperate to form a comprehensive, modular window-mountable air conditioner that: accommodates a wide range of window widths, wall thicknesses, and building construction types; rigidly fastens to the wall under the window without penetrating or damaging the interior wall, exterior wall, window frame, or window surfaces (i.e., by excluding screws or other fasteners driven into these surfaces); is deliverable and installable with a completed, sealed, and operable cooling system, thereby preventing need for filling of refrigerant or working fluid fill or connecting of fluid or refrigerant lines after installation on the window; limits increase in window sightline by locating only the low-profile bridge housing 150 in the window opening; and is configured to carry substantial vertical loads (e.g., up to 400 lbs. static load) such that the window maintains egress status.

The system is described herein as an air conditioning-heating unit 110. However, the system can additionally or alternatively be operated in heating, dehumidifying, and/or air-filtering modes.

CONCLUSION

As a person skilled in the art will recognize from the previous detailed description and from the figures and claims, modifications and changes can be made to the embodiments of the invention without departing from the scope of this invention as defined in the following claims.