Patent application title:

MORTARLESS INTERLOCKING CONCRETE BLOCK SYSTEM

Publication number:

US20260055603A1

Publication date:
Application number:

19/305,365

Filed date:

2025-08-20

Smart Summary: A new type of concrete block system allows blocks to fit together without using mortar. Each block has special shapes that help them lock together securely, making strong connections in different directions. This design means that anyone can build with these blocks, as it doesn't require expert skills. The blocks also have spaces inside for utilities and reinforcements. They are lighter than traditional blocks but still provide the same strength for various building needs. 🚀 TL;DR

Abstract:

A mortarless interlocking concrete masonry unit system includes concrete blocks comprising field blocks, corner blocks, end blocks, and intersecting blocks. Each block includes an interlocking geometry with protruding portions and recess portions configured to engage with adjacent blocks through approximately fifty percent overlap connections. The interlocking geometry enables mechanical bonding in longitudinal, lateral, vertical, and transverse orientations without requiring mortar joints. The system creates structural assemblies through self-aligning connections that resist shear forces while eliminating the need for skilled masonry labor. Central cavities in each block accommodate utility installations and reinforcement materials. The corner blocks provide ninety-degree connections, end blocks enable wall terminations with finished surfaces, and intersecting blocks enable perpendicular wall additions at any location. The lightweight concrete blocks are approximately fifty percent lighter than conventional masonry units while maintaining equivalent structural performance for walls, partitions, foundations, and load-bearing structures.

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Classification:

E04B2/18 »  CPC main

Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements; Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to U.S. Provisional Application No. 63/685,053 filed Aug. 20, 2024, titled “MORTARLESS INTERLOCKING CONCRETE BLOCK SYSTEM,” which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The embodiments generally relate to concrete masonry units for construction applications, and more specifically to mortarless interlocking concrete block systems with mechanical bonding mechanisms for construction.

BACKGROUND

Conventional concrete masonry unit (CMU) construction relies on mortar joints to bond individual blocks together into structural wall systems. Traditional CMU systems typically require skilled masonry labor to ensure proper mortar application, alignment, and structural integrity. Mortar-based construction presents several limitations including extended curing times, weather sensitivity during installation, and potential weakness at mortar joints that can compromise overall structural performance.

While some masonry systems have incorporated interlocking features or modular designs, they continue to depend on mortar or adhesive bonding agents for structural connection between units. These systems often lack the mechanical interlocking capability needed to create strong connections without chemical bonding agents. Moreover, conventional CMU blocks are typically heavy and require physical effort for installation, limiting their practical use in applications where rapid assembly or lightweight construction is desired.

In certain cases, conventional masonry construction incorporates reinforcement through rebar placement and concrete filling of block cavities. However, these systems maintain their structural integrity primarily through the mortar bonds between units rather than through mechanical interlocking of the blocks themselves. The reliance on mortar joints creates potential failure points, particularly in applications subject to seismic activity or thermal cycling, where differential movement can compromise the bonds between blocks.

Traditional CMU systems also present challenges for utility installation, as plumbing and electrical routing often requires post-construction modification or careful coordination during the masonry installation process. The standard cavity dimensions in conventional blocks may not accommodate modern utility requirements without compromising structural performance or requiring additional construction steps.

SUMMARY

This summary is provided to introduce a variety of concepts in a simplified form that is further disclosed in the detailed description of the embodiments. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended to determine the scope of the claimed subject matter.

In one aspect, variations of the disclosed mortarless interlocking concrete masonry unit system may include a plurality of concrete blocks featuring specialized interlocking geometries. The system comprises field blocks, corner blocks, end blocks, and intersecting blocks, each having protruding portions and recess portions configured to engage with adjacent blocks. The interlocking geometry enables connection in multiple orientations to form structural assemblies without requiring mortar, providing mechanical bonding through approximately fifty percent engagement coverage across block faces.

In one aspect, variations of the disclosed concrete block may include a block body with interlocking geometry formed on the block surface. The interlocking geometry comprises protruding portions and recess portions configured to engage with corresponding features of adjacent blocks in longitudinal, lateral, vertical, or transverse orientations. The block may be configured as a field block with interlocking geometries on opposing faces, a corner block with interlocking geometries on perpendicular faces, an intersecting block configured to engage with multiple adjacent blocks, or an end block featuring one finished exterior surface and one interlocking surface.

In one aspect, variations of the disclosed method of constructing a mortarless wall may include providing concrete blocks with interlocking geometries and aligning blocks so that protruding portions engage with recess portions of adjacent blocks. The method involves repeating the alignment process with multiple block types including corner blocks, end blocks, and intersecting blocks to form a structural wall assembly without mortar. The alignment process enables self-alignment of blocks to maintain consistent course height and lateral alignment without external guides.

Other illustrative variations within the scope of the invention will become apparent from the detailed description provided hereinafter. The detailed description and enumerated variations, while disclosing optional variations, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

A more complete understanding of the embodiments, and the attendant advantages and features thereof, will be more readily understood by references to the following detailed description when considered in conjunction with the accompanying drawings wherein:

FIG. 1 illustrates a cross-sectional view of a standard field block showing interlocking geometry with protruding portions, recess portions, and a central cavity, according to some embodiments;

FIG. 2 illustrates a cross-sectional view of an intersecting block configured to create perpendicular wall connections and engage with multiple adjacent blocks, according to some embodiments;

FIG. 3 illustrates a cross-sectional view of a corner field block configured for ninety-degree corner connections with interlocking geometries on perpendicular faces, according to some embodiments;

FIG. 4 illustrates a cross-sectional view of a full end block configured for wall terminations with interlocking features on one face and a finished exterior surface, according to some embodiments; and

FIG. 5 illustrates a perspective view of a mortarless wall system showing the integration of multiple block types with vertical and lateral reinforcement bars, according to some embodiments.

DETAILED DESCRIPTION

The specific details of the single embodiment or variety of embodiments described herein are set forth in this application. Any specific details of the embodiments described herein are used for demonstration purposes only, and no unnecessary limitation(s) or inference(s) are to be understood or imputed therefrom.

Before describing exemplary embodiments in detail, it is noted that the embodiments reside primarily in combinations of components related to systems and methods. Accordingly, the system components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.

For clarity and consistency, the same reference numerals will be used throughout the detailed description to refer to the same or corresponding components across the various figures. When a particular component is discussed while referring to a figure different from the one in which the component first appears, the reference numeral and original figure will be cited for clarity.

Directional terms such as “top,” “bottom,” “upper,” “lower,” “horizontal,” and “vertical” may be used in the following description for clarity with respect to the orientation of components as shown in the figures. These terms are not intended to be limiting and may be interpreted relative to the position or orientation of the concrete masonry unit system in actual use, which may vary.

Unless otherwise specified, the singular forms “a,” “an,” and “the” include plural referents. Components may be described functionally rather than structurally where appropriate for clarity. Any features or configurations disclosed as being optional or alternative may be implemented individually or in any suitable combination, as would be understood by one of ordinary skill in the art.

The disclosed mortarless interlocking concrete masonry unit system may include concrete blocks formed from lightweight concrete composite materials that provide structural strength while reducing overall weight compared to conventional masonry units. The blocks may be configured to be approximately fifty percent lighter than traditional concrete masonry units while maintaining equivalent or superior load-bearing capacity. In some embodiments, alternative concrete formulations or composite materials may be used to achieve similar strength-to-weight ratios and durability characteristics.

Each block may define an interlocking geometry comprising protruding portions and recess portions that enable mechanical engagement with adjacent blocks. The interlocking geometry may be configured to create approximately fifty percent overlap engagement across block faces, providing secure mechanical bonds without requiring mortar or adhesive bonding agents. The protruding portions may extend across mid-sections of block faces and may feature rounded edges to facilitate smooth engagement and disengagement during assembly. The recess portions may be configured to receive protruding portions of adjacent blocks, creating interlocking connections that resist shear forces in multiple directions.

The blocks may include central cavities extending longitudinally through each unit, dimensioned to accommodate utility installations such as pipes (i.e., PVC forty scheduled pipes) and associated plumbing connections. These central cavities may provide space for routing electrical conduits, plumbing lines, or reinforcement materials during construction while maintaining the structural integrity of the wall system. The cavity dimensions may be optimized to balance utility accommodation with structural performance requirements.

The interlocking geometry of each block may be configured to enable self-alignment during assembly, maintaining consistent course height and lateral alignment without requiring external guides or specialized installation tools. The blocks may be configured to engage in longitudinal, lateral, vertical, and transverse orientations, providing flexibility in wall construction and structural configurations. The mechanical interlocking connections may be configured to resist separation under normal structural loads while permitting disassembly and reassembly without degradation of the interlocking features.

The system may include multiple block types configured for different construction applications, including field blocks for standard wall sections, corner blocks for ninety-degree connections, end blocks for wall terminations, and intersecting blocks for perpendicular wall junctions. Each block type may incorporate the same interlocking principles while providing specialized geometric configurations to address specific construction requirements.

In use, construction personnel may position blocks according to desired wall configurations and engage the interlocking geometries to create structural assemblies without mortar application. The blocks may be installed in sequential courses with each block engaging multiple adjacent blocks through the interlocking connections. The rounded edges of the protruding portions guide the blocks into proper alignment by sliding smoothly into the curved recesses of the recess portions, creating self-alignment that maintains consistent course height and lateral positioning. Utility installations may be completed concurrently with block placement by routing plumbing or electrical systems through the central cavities as wall construction progresses. Upon completion of block assembly, reinforcement materials such as vertical and lateral reinforcement bars may be positioned within the wall structure and secured with poured concrete to provide additional structural support as required by building codes or engineering specifications.

A residential construction crew may utilize the mortarless interlocking system to construct exterior walls for a single-family home. The blocks enable easier handling and positioning compared to conventional masonry units, while the self-aligning interlocking geometry reduces the skill level required for proper installation. The crew may complete wall assembly in weather conditions that would prevent traditional mortar application, eliminating delays associated with temperature or humidity restrictions.

A commercial building project may employ the system for interior partition walls where rapid construction is desired. The absence of mortar eliminates curing time requirements, enabling immediate progression to subsequent construction phases. The central cavities accommodate building system installations such as plumbing risers and electrical conduits without requiring post-construction modification of the wall structure.

An emergency shelter construction scenario may benefit from the system's ability to be assembled by unskilled volunteers. The mechanical interlocking connections provide structural integrity without requiring specialized masonry knowledge, while the lightweight design reduces physical demands on construction personnel. The blocks may be disassembled and relocated as emergency housing needs change, providing reusable construction materials.

It should be noted that the use cases described above are merely illustrative examples of how the mortarless interlocking concrete masonry unit system may be utilized, and the practical applications are not limited to these specific scenarios. The versatile interlocking design and lightweight construction make the system suitable for a wide variety of construction applications where rapid assembly, reduced labor requirements, or reusable components provide advantages over conventional masonry construction methods.

The disclosed system provides a mortarless interlocking concrete masonry unit system that offers a mechanically bonded alternative to conventional mortar-based masonry construction. By incorporating specialized interlocking geometries with fifty percent overlap engagement, lightweight concrete composite materials, and self-aligning features, the system enables rapid wall assembly without skilled masonry labor while providing structural performance equivalent to or exceeding traditional construction methods. Unlike conventional systems that rely on chemical mortar bonds and require extended curing times, this design creates immediate structural connections through mechanical interlocking and accommodates utility installations through appropriately dimensioned central cavities, allowing construction to proceed efficiently in a variety of residential, commercial, and emergency construction applications.

FIG. 1 illustrates a cross-sectional view of a standard field block 100 according to one embodiment of the disclosed mortarless interlocking concrete masonry unit system. The standard field block 100 represents a building component used in wall construction and may comprise approximately ninety percent of the blocks utilized in a typical structural assembly. As shown in FIG. 1, the standard field block 100 is formed from lightweight concrete composite materials that provide structural strength while reducing overall weight compared to conventional concrete masonry units.

The standard field block 100 includes a block body that extends between a first end 102A and a second end 102B, defining an overall height H1 and width W1. The block body incorporates an interlocking geometry configured to enable mechanical engagement with adjacent blocks without requiring mortar joints. The interlocking geometry comprises one or more protruding portions and one or more recess portions that work together to create the mechanical bonding system that eliminates the need for chemical bonding agents.

As shown in FIG. 1, the standard field block 100 includes one or more protruding portions 105A, 105B, 105C, and 105D (collectively “protruding portions 105”) positioned on multiple faces of the block body. The protruding portions 105A and 105B are positioned on opposing faces to enable longitudinal engagement with adjacent blocks, while protruding portions 105C and 105D are oriented to provide lateral or transverse engagement capability. Each of the protruding portions 105 includes rounded edges 107A, 107B, 107C, and 107D (collectively “rounded edges 107”) that facilitate smooth insertion and secure seating within corresponding recess portions during block assembly. While only selected rounded edges 107 are labeled for clarity, similar rounded edge configurations are present on additional protruding portions 105 throughout the standard field block 100.

The protruding portions 105 are connected to the block body as extensions that project outward from the block faces. The protruding portions 105 extend across mid-sections of their respective block faces, creating an approximately fifty percent overlap engagement that provides the mechanical bonding strength disclosed herein. The rounded edges 107 enable the protruding portions 105 to slide smoothly into receiving recess portions while creating secure mechanical locks that resist withdrawal forces.

The standard field block 100 further includes one or more recess portions 104A, 104B, and 104C (collectively “recess portions 104”) configured as complementary receiving features that accept the protruding portions 105 of adjacent blocks. The recess portions 104 are formed as recessed areas within the block body, dimensioned and shaped to receive the protruding portions 105 with precise fit tolerances. As shown in FIG. 1, the recess portions 104 include curved recesses 112A, 112B, 112C, 112D, 112E, and 112F (collectively “curved recesses 112”) that accommodate the rounded edges 107 of the protruding portions 105. While only selected curved recesses 112 are specifically labeled, similar curved recess configurations are present throughout the recess portions 104 to ensure consistent engagement characteristics.

The protruding portions 105 and recess portions 104 function together to create mechanical interlocking connections when blocks are assembled. When a protruding portion 105 of one block is inserted into a corresponding recess portion 104 of an adjacent block, the rounded edges sit within the curved recesses, creating a mechanical bond that covers approximately fifty percent of the block face area. This mechanical engagement resists shear forces in multiple directions while enabling self-alignment of the blocks during assembly, eliminating the need for external guides or specialized installation tools.

This interlocking geometry creates mechanical bonds that are stronger than traditional chemical mortar bonds while enabling rapid assembly without skilled labor requirements. The approximately fifty percent overlap engagement distributes structural loads across a contact area, providing resistance to separation forces compared to conventional mortar joints. The self-aligning characteristics of the rounded edges 107 and curved recesses 112 ensure consistent course height and lateral alignment during construction, reducing installation time and improving structural integrity.

A central cavity 110 extends longitudinally through the standard field block 100, providing internal space for utility installations and reinforcement materials. The central cavity 110 is dimensioned to accommodate for example, pipes (i.e., PVC schedule forty pipes), electrical conduits, or structural reinforcement elements without compromising the integrity of the block body. The central cavity 110 enables continuous routing of utilities through assembled wall structures during construction rather than requiring post-installation modifications.

The standard field block 100 includes a bottom surface 108 that provides stable positioning during installation and contributes to the self-aligning characteristics of the system. The bottom surface 108 creates a reference plane that ensures consistent block orientation during assembly and distributes the block weight evenly across supporting surfaces. The bottom surface 108 enables precise vertical alignment of courses without requiring leveling compounds or adjustment procedures typically associated with conventional masonry construction.

In some embodiments, the protruding portions 105 may feature alternative edge configurations such as chamfered edges, beveled edges, or angular profiles to provide different engagement characteristics while maintaining the mechanical interlocking functionality. In some embodiments, the standard field block 100 may be formed from alternative materials such as fiber-reinforced concrete, polymer concrete composites, or recycled concrete materials to achieve varying strength, weight, or environmental characteristics. In some embodiments, the central cavity 110 may be configured with different cross-sectional shapes or dimensions to accommodate specific utility requirements or structural reinforcement configurations.

FIG. 2 illustrates a cross-sectional view of an intersecting block 200 according to one embodiment of the disclosed mortarless interlocking concrete masonry unit system. The intersecting block 200 is configured to be inserted at any spot along a wall to create perpendicular additions to existing wall structures, providing architectural flexibility and design freedom. As shown in FIG. 2, the intersecting block 200 enables perpendicular wall connections through an intricate design feature that maintains the mechanical interlocking principles while accommodating complex structural configurations.

The intersecting block 200 includes a block body that extends between various ends and faces 202A, 202B, and 202C, defining an overall height H2 and width W2. The block body incorporates interlocking geometry configured to engage with at least three adjacent blocks simultaneously, enabling the intersecting block 200 to serve as a junction point for perpendicular wall connections. In some embodiments, the interlocking geometry may be configured to engage with 3 or less adjacent blocks to accommodate complex multi-directional wall intersections. The intersecting block 200 comprises one or more protruding portions and one or more recess portions that permit connection in longitudinal, lateral, vertical, or transverse orientations to form structural assemblies without mortar while providing intersection functionality.

As shown in FIG. 2, the intersecting block 200 includes one or more protruding portions 205A, 205B, 205C, 205D, 205E, and 205F (collectively “protruding portions 205”) positioned on multiple faces of the block body to enable engagement with adjacent blocks from different directions. The protruding portions 205 are configured to engage with corresponding recess portions of adjacent blocks, creating an engagement overlap that provides secure mechanical bonding in intersection applications. This engagement overlap may be approximately fifty percent or more. Furthermore, each of the protruding portions 205 includes rounded edges, with selected rounded edges 207A and 207B. While only rounded edges 207A and 207B (collectively “rounded edges 207”) are individually identified, it should be understood that similar rounded edge configurations are present on all protruding portions 205 throughout the intersecting block 200 to facilitate smooth engagement and self-alignment during intersection assembly.

The protruding portions 205 are connected to the block body as extensions that project outward from multiple block faces, enabling simultaneous engagement with adjacent blocks in different orientations. The protruding portions 205 extend across mid-sections of their respective block faces, maintaining approximately fifty percent overlap engagement capability while accommodating the geometric requirements of perpendicular wall intersections. The rounded edges 207 on all protruding portions 205 enable smooth insertion into receiving recess portions of blocks from multiple wall directions while creating secure mechanical locks that resist withdrawal forces and maintain structural integrity at the intersection point.

The intersecting block 200 further includes one or more recess portions 204A, 204B, 204C, and 204D (collectively “recess portions 204”) configured as complementary receiving features that accept protruding portions of adjacent blocks from multiple wall directions. The recess portions 204 are formed as recessed areas within the block body, dimensioned and shaped to receive protruding portions with precise fit tolerances that enable the approximately fifty percent overlap engagement on multiple faces simultaneously. As shown in FIG. 2, the recess portions 204 include curved recesses 212A and 212B (collectively “curved recesses 212”). While only curved recesses 212A and 212B are individually identified, it should be understood that similar curved recess configurations are present throughout all recess portions 204 to accommodate the rounded edges of protruding portions and ensure consistent engagement characteristics across all intersection surfaces.

The protruding portions 205 and recess portions 204 function together to create mechanical interlocking connections that enable simultaneous engagement with multiple adjacent blocks in different orientations, resisting shear forces applied along vertical, lateral, or longitudinal axes while enabling the intersecting block 200 to serve as a structural intersection point for perpendicular wall additions. When protruding portions 205 of the intersecting block 200 engage with corresponding recess portions of adjacent blocks from multiple wall directions, the rounded edges sit within the curved recesses, creating mechanical bonds that maintain structural continuity through the intersection. This arrangement enables construction of structural wall assemblies without mortar while providing intersection capability that enables perpendicular wall additions at any location along existing wall structures.

The intersecting block 200 includes side surfaces 208A and 208B that provide structural interfaces for the multiple wall connections and contribute to the overall intersection assembly characteristics. These surfaces 208A and 208B enable proper positioning and orientation of the intersecting block 200 within intersection applications while maintaining the self-alignment capabilities that eliminate the need for external guides during perpendicular wall construction.

A central cavity 210 extends through the intersecting block 200, providing internal space for utility installations and reinforcement materials at intersection points. The central cavity 210 accommodates pipes, electrical conduits, or structural reinforcement elements while maintaining the block's intersection functionality. This cavity configuration enables continuous routing of building systems through wall intersections, facilitating coordinated installation of utilities and structural elements at perpendicular wall junctions.

The intersecting block 200 provides architectural flexibility by enabling users to incorporate perpendicular wall additions anywhere along a wall structure without requiring predetermined intersection points or specialized construction planning. The intersecting block 200 maintains the mechanical interlocking connections while accommodating complex structural configurations that enhance design freedom and construction versatility.

In some embodiments, the intersecting block 200 may feature alternative intersection configurations such as T-shaped junctions, Y-shaped intersections, or multi-directional connection capabilities to accommodate different architectural requirements. In some embodiments, the central cavity 210 may be configured with varying cross-sectional shapes or dimensions to accommodate specific utility routing needs or structural reinforcement configurations at intersection points. In some embodiments, the intersection surfaces may incorporate specialized connection features or architectural details to enhance structural performance or visual integration. In some embodiments, the engagement between protruding portions 205 and recess portions 204 may cover more than fifty percent of a block face to provide enhanced mechanical bonding strength at intersection connections, or alternatively, may cover less than fifty percent of a block face to facilitate easier intersection assembly while maintaining adequate structural connection.

FIG. 3 illustrates a cross-sectional view of a corner field block 300 according to one embodiment of the disclosed mortarless interlocking concrete masonry unit system. The corner field block 300 is configured to create ninety-degree right angle corners for structural walls, providing interlocking capabilities on perpendicular faces while eliminating traditional corner joints. As shown in FIG. 3, the corner field block 300 enables corner construction through a one-piece unit design that maintains the mechanical interlocking principles while addressing the specific requirements of corner wall connections.

The corner field block 300 includes a block body that extends between various ends and faces 302A, 302B, 302C, and 302D, defining an overall height H3 and width W3. The block body incorporates interlocking geometry on perpendicular faces, enabling the corner field block 300 to engage with adjacent blocks in multiple orientations simultaneously. The corner field block 300 comprises one or more protruding portions and one or more recess portions that permit connection in longitudinal, lateral, vertical, or transverse orientations to form structural assemblies without mortar while providing corner functionality.

As shown in FIG. 3, the corner field block 300 includes one or more protruding portions 305A, 305B, 305C, and 305D (collectively “protruding portions 305”) positioned on the block body to enable corner connections. The protruding portions 305 are configured to engage with corresponding recess portions of adjacent blocks on both wall directions that meet at the corner, creating an approximately fifty percent overlap engagement that provides secure mechanical bonding in corner applications. Each of the protruding portions 305 includes rounded edges, with selected rounded edges 307A and 307B. While only rounded edges 307A and 307B (collectively “rounded edges 307”) are individually identified, it should be understood that similar rounded edge configurations are present on all protruding portions 305 throughout the corner field block 300 to facilitate smooth engagement and self-alignment during corner assembly.

The protruding portions 305 are connected to the block body as extensions that project outward from perpendicular block faces, enabling simultaneous engagement with multiple adjacent blocks in different orientations. The protruding portions 305 extend across mid-sections of their respective block faces, maintaining the approximately fifty percent overlap engagement capability while accommodating the geometric requirements of corner construction. The rounded edges 307 on all protruding portions 305 enable smooth insertion into receiving recess portions of blocks from both wall directions while creating secure mechanical locks that resist shear forces applied along multiple axes.

The corner field block 300 further includes one or more recess portions 304A, 304B, and 304C (collectively “recess portions 304”) configured as complementary receiving features that accept protruding portions of adjacent blocks from perpendicular wall directions. The recess portions 304 are formed as recessed areas within the block body, dimensioned and shaped to receive protruding portions with precise fit tolerances that enable the approximately fifty percent overlap engagement on both corner faces. As shown in FIG. 3, the recess portions 304 include curved recesses, with selected curved recesses 312A and 312B (collectively “curved recesses 312”). While only curved recesses 312A and 312B are individually identified, it should be understood that similar curved recess configurations are present throughout all recess portions 304 to accommodate the rounded edges of protruding portions and ensure consistent engagement characteristics on perpendicular surfaces.

The protruding portions 305 and recess portions 304 function together to create mechanical interlocking connections that resist shear forces applied along vertical, lateral, or longitudinal axes while enabling the corner field block 300 to serve as a structural corner connection. When protruding portions 305 of the corner field block 300 engage with corresponding recess portions of adjacent blocks from both wall directions, the rounded edges sit within the curved recesses, creating mechanical bonds that maintain structural continuity through the corner connection. This arrangement enables construction of structural wall assemblies without mortar while providing corner support that eliminates the need for separate corner reinforcement or specialized corner construction techniques.

The corner field block 300 includes side surfaces 308A and 308B that provide structural interfaces for the perpendicular wall connections and contribute to the overall corner assembly characteristics. These surfaces 308A and 308B enable proper positioning and orientation of the corner field block 300 within corner applications while maintaining the self-alignment capabilities that eliminate the need for external guides during corner construction.

A central cavity 310 extends through the corner field block 300, configured as a large L-shaped cavity that accommodates multiple reinforcement bars within poured concrete. The central cavity 310 provides space for inserting multiple number five reinforcement bars into the poured concrete cavity, creating strong corner support for both left-hand and right-hand wall directions. This L-shaped cavity configuration enables comprehensive reinforcement of the corner connection while maintaining the block's interlocking functionality and structural integrity.

The corner field block 300 eliminates traditional corner joints through its one-piece unit design, providing a corner solution that maintains mechanical interlocking connections while addressing the structural requirements of perpendicular wall intersections. The block enables corner construction without requiring specialized installation techniques or additional corner reinforcement components beyond the standard reinforcement bars positioned within the central cavity 310.

In some embodiments, the corner field block 300 may feature alternative corner angles such as forty-five degree corners, obtuse angle corners, or adjustable corner configurations to accommodate different architectural requirements. In some embodiments, the central cavity 310 may be configured with varying cross-sectional shapes or dimensions to accommodate different reinforcement bar sizes or quantities. In some embodiments, the perpendicular interlocking surfaces may incorporate decorative textures or architectural details to enhance visual integration with overall building design. In some embodiments, the engagement between protruding portions 305 and recess portions 304 may cover more than fifty percent of a block face to provide enhanced mechanical bonding strength at corner connections, or alternatively, may cover less than fifty percent of a block face to facilitate easier corner assembly while maintaining adequate structural connection.

FIG. 4 illustrates a cross-sectional view of a full end block 400 according to one embodiment of the disclosed mortarless interlocking concrete masonry unit system. The full end block 400 is configured for termination of walls at window and door openings, providing a finished exterior surface while maintaining the mechanical interlocking capabilities disclosed herein. As shown in FIG. 4, the full end block 400 includes geometric features that enable wall termination while preserving the structural integrity and assembly characteristics of the overall system.

The full end block 400 includes a block body that extends between various ends and faces 402A and 402B, defining an overall height H4 and width W4. The block body incorporates the same interlocking geometry principles as the standard field block 100 of FIG. 1 while adapting these features for termination applications. The full end block 400 comprises one or more protruding portions and one or more recess portions that enable mechanical engagement with adjacent blocks in longitudinal, lateral, vertical, or transverse orientations to form structural assemblies without mortar.

As shown in FIG. 4, the full end block 400 includes one or more protruding portions 405A and 405B (collectively “protruding portions 405”) positioned on multiple faces of the block body. The protruding portions 405 are configured to engage with corresponding recess portions of adjacent blocks, creating an approximately fifty percent overlap engagement that provides secure mechanical bonding. Each of the protruding portions 405 includes rounded edges, with selected rounded edges 407A and 407B specifically labeled for clarity (collectively “rounded edges 407”). While only rounded edges 407A and 407B are individually identified, it should be understood that similar rounded edge configurations are present on all protruding portions 405 throughout the full end block 400 to facilitate smooth engagement and self-alignment during assembly.

The protruding portions 405 are connected to the block body as extensions that project outward from specific block faces while leaving other faces available for finished termination applications. The protruding portions 405 extend across mid-sections of their respective block faces, maintaining the approximately fifty percent overlap engagement capability that enables mechanical interlocking without external guides or specialized installation tools. The rounded edges 407 on all protruding portions 405 enable smooth insertion into receiving recess portions while creating secure mechanical locks that resist withdrawal forces.

The full end block 400 further includes one or more recess portions 404A, 404B, and 404C (collectively “recess portions 404”) configured as complementary receiving features that accept protruding portions of adjacent blocks. The recess portions 404 are formed as recessed areas within the block body, dimensioned and shaped to receive protruding portions with precise fit tolerances that enable the approximately fifty percent overlap engagement. As shown in FIG. 4, the recess portions 404 include curved recesses, with selected curved recesses 412A and 412B specifically labeled for reference (collectively “curved recesses 412). While only curved recesses 412A and 412B are individually identified, it should be understood that similar curved recess configurations are present throughout all recess portions 404 to accommodate the rounded edges of protruding portions and ensure consistent engagement characteristics.

The protruding portions 405 and recess portions 404 function together to create mechanical interlocking connections that resist shear forces applied along vertical, lateral, or longitudinal axes while enabling the full end block 400 to serve as a wall termination component. When protruding portions 405 of the full end block 400 are inserted into corresponding recess portions of adjacent blocks, the rounded edges sit within the curved recesses, creating mechanical bonds that maintain structural continuity up to the point of termination. This arrangement enables construction of structural wall assemblies without mortar while providing finished surfaces for window and door installations.

The full end block 400 includes side surfaces 408A and 408B that provide structural interfaces and may contribute to the overall assembly characteristics of the block system. These surfaces 408A and 408B enable proper positioning and orientation of the full end block 400 within wall structures while maintaining the self-alignment capabilities that eliminate the need for external guides during installation.

A central cavity 410 extends through the full end block 400, providing internal space for utility installations and reinforcement materials. The central cavity 410 accommodates pipes, electrical conduits, or structural reinforcement elements while maintaining the block's termination functionality. The central cavity 410 enables continuous routing of building systems through the wall structure up to the point of termination, facilitating coordinated installation of utilities and structural elements.

The full end block 400 incorporates a dove tail configuration on the open end that permits slide-in installation of window and door elements, enabling easy adjustment of termination length and alignment with fenestration requirements. This dove tail feature enables the full end block 400 to accommodate various opening dimensions while maintaining the mechanical interlocking connections with adjacent blocks throughout the assembly process.

In some embodiments, the full end block 400 may feature alternative termination configurations such as beveled edges, recessed mounting surfaces, or attachment features to accommodate different window and door installation requirements. In some embodiments, the central cavity 410 may be configured with varying sizes or quantities to accommodate specific utility routing needs or structural reinforcement configurations. In some embodiments, the finished exterior surfaces may incorporate decorative textures, architectural details, or material variations to enhance aesthetic integration with building design requirements. In some embodiments, the engagement between protruding portions 405 and recess portions 404 may cover more than fifty percent of a block face to provide enhanced mechanical bonding strength, or alternatively, may cover less than fifty percent of a block face to facilitate easier assembly and disassembly while maintaining adequate structural connection.

The various block types described herein may be manufactured in multiple size configurations to accommodate different construction requirements and building standards. The heights H1, H2, H3, and H4 and widths W1, W2, W3, and W4 of the standard field blocks 100, intersecting blocks 200, corner field blocks 300, and full end blocks 400, respectively, may be varied to meet specific architectural or structural specifications. In some embodiments, the blocks may be produced in standard masonry dimensions to provide compatibility with conventional construction practices and building codes. In other embodiments, the blocks may be manufactured in custom dimensions to address specific project requirements, load-bearing specifications, or aesthetic considerations. The dimensional flexibility of the system enables adaptation to various construction applications while maintaining the fundamental interlocking geometry and mechanical bonding characteristics across all size variations.

FIG. 5 illustrates a perspective view of a mortarless wall system 500 showing the integration of multiple block types with vertical and lateral reinforcement bars according to one embodiment of the disclosed system. The mortarless wall system 500 demonstrates a practical application of the structural assembly configured to be constructed without mortar, incorporating a plurality of concrete blocks including at least a field block, a corner block, an end block, and an intersecting block working together to form a complete wall structure. As shown in FIG. 5, the mortarless wall system 500 exemplifies how the individual block components function as an integrated system to create structural walls suitable for residential and commercial construction applications.

The mortarless wall system 500 includes multiple standard field blocks 100, as previously described with respect to FIG. 1, positioned throughout the wall structure. The standard field blocks 100 provide the foundational structural elements of the mortarless wall system 500, with their interlocking geometries creating mechanical bonds that eliminate the need for mortar joints. The standard field blocks 100 are arranged in sequential courses with each block engaging multiple adjacent blocks through the protruding portions and recess portions that enable the connections disclosed herein.

The mortarless wall system 500 further incorporates intersecting blocks 200, as previously described with respect to FIG. 2, positioned to enable perpendicular wall additions and complex structural configurations. The intersecting blocks 200 provide architectural flexibility by enabling perpendicular wall connections at any location along the wall structure, demonstrating the versatility of the mortarless wall system 500 in accommodating diverse construction requirements and design specifications.

Corner field blocks 300, as previously described with respect to FIG. 3, are incorporated within the mortarless wall system 500 to create ninety-degree corner connections between perpendicular wall sections. The corner field blocks 300 enable the mortarless wall system 500 to accommodate complex building geometries while maintaining the mechanical interlocking connections that provide structural continuity through corner transitions. The corner field blocks 300 demonstrate how the system addresses corner construction requirements without requiring traditional corner reinforcement techniques.

Full end blocks 400, as previously described with respect to FIG. 4, are positioned at wall terminations to provide finished surfaces and accommodate window or door openings. The full end blocks 400 maintain the mechanical interlocking connections with adjacent standard field blocks 100 while providing the termination functionality required for complete wall construction. The integration of full end blocks 400 within the mortarless wall system 500 demonstrates how wall terminations are achieved without compromising the structural integrity of the overall assembly.

The mortarless wall system 500 includes vertical reinforcement bars 502 positioned within the central cavities of the various blocks to provide additional structural support and load-bearing capacity. The vertical reinforcement bars 502 extend through multiple courses of blocks, creating continuous vertical reinforcement columns that enhance the structural performance of the mortarless wall system 500. The vertical reinforcement bars 502 are accommodated by the central cavities previously described in each block type, enabling reinforcement installation concurrent with block assembly.

Lateral reinforcement bars 504 are incorporated within the mortarless wall system 500 to provide horizontal structural reinforcement that ties the wall sections together and distributes loads across the assembly. The lateral reinforcement bars 504 work in conjunction with the vertical reinforcement bars 502 to create a comprehensive reinforcement grid that enhances the structural integrity of the mortarless wall system 500. The lateral reinforcement bars 504 demonstrate how conventional reinforcement techniques can be integrated with the mortarless interlocking system to meet structural engineering requirements.

The vertical reinforcement bars 502 and lateral reinforcement bars 504 function together with the mechanical interlocking connections of the blocks to create a structural assembly that resists forces applied along multiple axes while maintaining the construction advantages of mortarless assembly. The reinforcement bars 502 and 504 are positioned within the wall structure block assembly and secured with poured concrete to provide additional structural capacity beyond the mechanical interlocking connections alone.

The mortarless wall system 500 demonstrates how the structural assembly is configured for use in walls, partitions, foundations, retaining walls, load-bearing structures, or freestanding enclosures through the integration of multiple block types and reinforcement elements. The system enables rapid wall construction without skilled masonry labor while providing structural performance equivalent to or exceeding conventional mortared construction methods. The mortarless wall system 500 exemplifies the practical application of the disclosed interlocking technology in real-world construction scenarios.

The mortarless wall system 500 enables construction personnel to assemble complete wall structures through the sequential placement and interlocking of the various block types. The system demonstrates how the self-aligning characteristics of the interlocking geometry maintain consistent construction quality while eliminating the time delays and skill requirements associated with conventional mortar-based construction.

In some embodiments, the mortarless wall system 500 may incorporate additional block types or specialized components to accommodate specific construction requirements such as mechanical equipment mounting, architectural features, or utility integration. In some embodiments, the reinforcement configuration may include alternative bar sizes, spacing, or materials to meet varying structural load requirements. In some embodiments, the mortarless wall system 500 may be configured for modular construction applications where wall sections can be prefabricated and assembled at construction sites. In some embodiments, the system 500 may incorporate integrated utility pathways, insulation systems, or architectural finishes to provide complete wall solutions for specific building applications.

In some embodiments, the mortarless wall system 500 may be constructed using a method that begins with providing concrete blocks including standard field blocks 100, intersecting blocks 200, corner field blocks 300, and full end blocks 400, each comprising an interlocking geometry with one or more protruding portions and one or more recess portions. The construction method involves aligning a first block with a second block such that at least one protruding portion of the first block engages with at least one recess portion of the second block. The engagement between the protruding portion and recess portion covers approximately fifty percent of a block face, creating secure mechanical bonding without mortar application. The alignment process is repeated with additional blocks including corner field blocks 300 for ninety-degree connections, full end blocks 400 for wall terminations, and intersecting blocks 200 for perpendicular wall additions, thereby forming the structural wall assembly without the use of mortar. The self-alignment characteristics of the interlocking geometry maintain consistent course height and lateral alignment without external guides throughout the construction process, enabling the mortarless wall system 500 to be constructed as walls, partitions, foundations, retaining walls, load-bearing structures, or freestanding enclosures depending on the specific application requirements.

It is well understood that methods that include one or more steps, the order listed is not a limitation of the claim unless there are explicit or implicit statements to the contrary in the specification or claim itself. It is also well settled that the illustrated methods are just some examples of many examples disclosed, and certain steps may be added or omitted without departing from the scope of this disclosure. Such steps may include incorporating devices, systems, or methods or components for reinforcement installation, utility routing, foundation preparation, surface finishing, or quality control procedures that enhance the construction process while maintaining the fundamental mortarless interlocking assembly principles.

In this disclosure, the descriptions of the various embodiments have been presented for purposes of illustration and are not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen to best explain the principles of the embodiments, the practical application or technical improvement over technologies found in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. Thus, the appended claims should be construed broadly, to include other variants and embodiments, which may be made by those skilled in the art.

It will be appreciated by persons skilled in the art that the present embodiment is not limited to what has been particularly shown and described hereinabove. A variety of modifications and variations are possible considering the above teachings without departing from the following claims.

Claims

I/We claim:

1. A mortarless interlocking concrete masonry unit (CMU) system comprising:

a plurality of concrete blocks including at least a field block, a corner block, an end block, and an intersecting block;

each block of the plurality of concrete blocks comprising an interlocking geometry comprising one or more protruding portions and one or more recess portions, wherein at least one protruding portion is configured to engage with at least one recess portion of an adjacent block;

wherein the interlocking geometry of each block of the plurality of concrete blocks permits connection in at least one of longitudinal, lateral, vertical, or transverse orientations to form a structural assembly; and

wherein the structural assembly is configured to be constructed without mortar.

2. The system of claim 1, wherein at least one protruding portion of each block of the plurality of concrete blocks is configured to engage with at least one recess portion of an adjacent block, wherein the engagement covers approximately fifty percent of a block face.

3. The system of claim 1, wherein the interlocking geometry of each block of the plurality of concrete blocks is configured to enable simultaneous engagement with multiple adjacent blocks in different orientations.

4. The system of claim 1, wherein at least one protruding portion is configured to extend across a mid-section of the block face and at least one recess portion is configured to receive at least one protruding portion of an adjacent block.

5. The system of claim 1, wherein the interlocking geometry of each block of the plurality of concrete blocks is configured to self-align during stacking to maintain a consistent course height and lateral alignment without external guides.

6. The system of claim 1, wherein the interlocking geometry of each block of the plurality of concrete blocks is configured to resist shear forces applied along at least one of a vertical, lateral, or longitudinal axis.

7. The system of claim 1, wherein the plurality of concrete blocks are configured to be repeatedly assembled and disassembled without degradation of the interlocking geometry.

8. The system of claim 1, wherein each block of the plurality of concrete blocks is formed of lightweight concrete composite.

9. The system of claim 1, wherein the structural assembly is configured for use in at least one of a wall, partition, foundation, retaining wall, load-bearing structure, or freestanding enclosure.

10. A concrete block comprising:

a block body;

an interlocking geometry formed on the block body, the interlocking geometry comprising one or more protruding portions and one or more recess portions, wherein at least one protruding portion of the one or more protruding portions is configured to engage with at least one recess portion of an adjacent block; and

wherein the interlocking geometry is configured to permit connection in at least one of longitudinal, lateral, vertical, or transverse orientations.

11. The block of claim 10, wherein the engagement between at least one protruding portion and at least one recess portion covers approximately fifty percent of a block face.

12. The block of claim 10, wherein the block is a field block having interlocking geometries disposed on opposing faces of the block body.

13. The block of claim 10, wherein the block is a corner block having interlocking geometries disposed on perpendicular faces of the block body.

14. The block of claim 10, wherein the block is an intersecting block configured to engage with at least three adjacent blocks.

15. The block of claim 10, wherein the block is an end block having one finished exterior surface and one interlocking surface.

16. The block of claim 10, wherein the block body further comprises a central cavity extending longitudinally through the block, wherein the central cavity is configured to receive pipes, electrical conduits, or structural reinforcement elements.

17. A method of constructing a mortarless wall, comprising:

providing a plurality of concrete blocks, each of the plurality of concrete blocks comprising an interlocking geometry comprising one or more protruding portions and one or more recess portions, wherein at least one protruding portion is configured to engage with at least one recess portion of an adjacent block;

aligning a first block of the plurality of concrete blocks with a second block of the plurality of concrete blocks such that at least one protruding portion of the first block engages with at least one recess portion of the second block;

repeating the alignment with additional blocks including at least a corner block, an end block, and an intersecting block; and

forming a structural wall assembly without a use of mortar.

18. The method of claim 17, wherein engaging comprises covering approximately fifty percent of a block face with at least one protruding portion of an adjacent block.

19. The method of claim 17, wherein aligning the plurality of concrete blocks comprises self-alignment through the interlocking geometry to maintain a consistent course height and lateral alignment without external guides.

20. The method of claim 17, further comprising constructing the structural wall assembly to form at least one of a wall, partition, foundation, retaining wall, load-bearing structure, or freestanding enclosure.

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