US20240017882A1
2024-01-18
18/220,794
2023-07-11
Smart Summary: A connectable beverage bottle has a hollow body with a central cavity and a special design that allows multiple bottles to connect together. It features a locking protrusion on one side and a matching indentation on the opposite side, enabling bottles to slide and lock into each other. The top of the bottle has an opening for filling and drinking. The bottom is designed with unique shapes to help with stability. This design makes it easy to manufacture and allows users to connect several bottles for convenience. π TL;DR
A connectable beverage bottle include: a hollow bottle body including a central cavity and a sidewall configured with a front vertical bottle locking protrusion that is configured with a horizontal overhang and left and right outward-curving left vertical bulges; a rear vertical bottle locking indentation with left and right inward-curving vertical indentations; and a flat bottom with a laterally elongated central indentation with alternating concave and convex edge portions; such that a plurality of connectable beverage bottles are configured to be mutually interconnectable.
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B65D21/0204 » CPC main
Nestable, stackable or joinable containers; Containers of variable capacity; Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together side-by-side and joined together by interconnecting formations forming part of the container, e.g. dove-tail, snap connections, hook elements
B65D21/02 IPC
Nestable, stackable or joinable containers; Containers of variable capacity Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
This U.S. Non-Provisional application is a Continuation-In-Part of U.S. Design application No. 29/896,967, filed Jul. 10, 2023; and is a Continuation-In-Part of U.S. Non-Provisional application Ser. No. 18/206,896, filed Jun. 7, 2023; and claims the benefit of U.S. Provisional Application No. 63/389,117, filed Jul. 14, 2022; all three of which are hereby incorporated herein by reference in their entirety.
The present invention relates generally to the field of beverage bottles for industrial manufacturing, and more particularly to methods and systems for a connectable beverage bottle with manufacturable features.
Interlocking connectable beverage bottle designs are well-known, and offer the opportunity for improved storage density, and can therefore reduce logistics cost for transport and storage.
However, such interlocking connectable beverage bottle designs have not gained widespread use, as they have proved difficult or impossible to manufacture using both traditional and state-of-the-art bottle molding methods.
As such, considering the foregoing, it may be appreciated that there continues to be a need for novel and improved connectable beverage bottles that are manufacturable with state-of-the art methods.
The foregoing needs are met, to a great extent, by the present invention, wherein in aspects of this invention, enhancements are provided to the existing model of connectable beverage bottles in order to enable manufacturability.
In an aspect, a connectable beverage bottle can include:
In a related aspect, the vertical bottle locking indentation can be configured with a horizontal overhang from a bottom outer edge of the vertical bottle locking indentation to a top outer edge of the vertical bottle locking indentation.
In another related aspect, the bottle body further comprises:
In a further related aspect, a left opening angle between an inner left tangent line of an inner end of the concave left inner surface and an outer left tangent line of an outer end of the concave left inner surface can be in a range of 35-45 degrees; and a right opening angle, between an inner right tangent line of an inner end of the concave right inner surface and an outer right tangent line of an outer end of the concave left inner surface, can be in a range of 35-45 degrees.
In another further related aspect, a left outward inclination angle, between a longitudinal center line of the bottle body and the inner left tangent line of the inner end of the concave left inner surface, can be in a range of 20-30 degrees; and a right outward inclination angle, between the longitudinal center line of the bottle body and the inner right tangent line of the inner end of the concave right inner surface, can be in a range of 20-30 degrees.
In yet a further related aspect, a maximum left opening width of the left front vertical indentation between the outer left transition point and the inner left transition point can be in range of 75-85% of a maximum protrusion width of the vertical bottle locking protrusion; and a maximum right opening width of the right front vertical indentation between the outer right transition point and the inner right transition point can be in range of 75-85% of the maximum protrusion width of the vertical bottle locking protrusion.
There has thus been outlined, rather broadly, certain embodiments of the invention in order that the detailed description thereof herein may be better understood, and in order that the present contribution to the art may be better appreciated. There are, of course, additional embodiments of the invention that will be described below and which will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of embodiments in addition to those described and of being practiced and carried out in various ways. In addition, it is to be understood that the phraseology and terminology employed herein, as well as the abstract, are for the purpose of description and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
FIG. 1 is a top front left perspective view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 2 is a top rear right perspective view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 3 is a bottom front left perspective view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 4 is a bottom rear right perspective view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 5 is a front view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 6 is a rear view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 7 is a left side view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 8 is a right side view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 9A is a bottom view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 9B is a bottom view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 10 is a top view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 11 is a sectional view of a connectable beverage bottle taken along section 11-11 of FIG. 10, not showing any features of an interior of the connectable beverage bottle, according to an embodiment of the invention.
FIG. 12 is a sectional view of a connectable beverage bottle taken along section line 12-12 of FIG. 10, not showing any features of the interior of the connectable beverage bottle, according to an embodiment of the invention.
FIG. 13 is a sectional view of a connectable beverage bottle taken along section line 13-13 of FIG. 5, not showing any features of the interior of the connectable beverage bottle, according to an embodiment of the invention.
FIG. 14 is a sectional view of a connectable beverage bottle taken along section line 14-14 of FIG. 10, not showing any features of the interior of the connectable beverage bottle, according to an embodiment of the invention.
FIG. 15 is a sectional view of a connectable beverage bottle taken along section line 15-15 of FIG. 10, not showing any features of the interior of the connectable beverage bottle, according to an embodiment of the invention.
FIG. 16A is a schematic view of a process of a vertical movement to detachably interlock two connectable beverage bottles, according to an embodiment of the invention.
FIG. 16B is a schematic view of a process of a lateral movement to detachably interlock two connectable beverage bottles, according to an embodiment of the invention.
FIG. 16C is a perspective view of three connectable beverage bottles that are interconnected, according to an embodiment of the invention.
FIG. 17 is a cross-sectional view of three connected connectable beverage bottles taken along section line 17-17 of FIG. 16C, showing an outer shell of the three connected connectable beverage bottles only, according to an embodiment of the invention.
FIG. 18A is a bottom right perspective view of a connectable beverage bottle, according to an embodiment of the invention.
FIG. 18B is a bottom left perspective view of a connectable beverage bottle, according to an embodiment of the invention.
Before describing the invention in detail, it should be observed that the present invention resides primarily in a novel and non-obvious combination of elements and process steps. So as not to obscure the disclosure with details that will readily be apparent to those skilled in the art, certain conventional elements and steps have been presented with lesser detail, while the drawings and specification describe in greater detail other elements and steps pertinent to understanding the invention.
The following embodiments are not intended to define limits as to the structure or method of the invention, but only to provide exemplary constructions. The embodiments are permissive rather than mandatory and illustrative rather than exhaustive.
In the following, we describe the structure of an embodiment of a connectable beverage bottle 100 with reference to FIG. 1, in such manner that like reference numerals refer to like components throughout; a convention that we shall employ for the remainder of this specification. The connectable beverage bottles 100 are designed to be interlockable, such that they may save space in logistics, such as during transport, storage, and store display, thereby improving space efficiency and cost efficiency; and, in comparison to earlier designs of interlockable bottles, are designed to be manufacturable with state-of-the-art bottle manufacturing methods.
In a related embodiment, FIGS. 1-12, shows an example of a connectable beverage bottle 100. The connectable beverage bottle 100 comprises a plurality of substantial design changes for the purpose of enabling manufacturability and improving connectability in comparison to an earlier design of an earlier connectable beverage bottle as disclosed in U.S. Pat. No. 10,472,117, issued Nov. 12, 2019; U.S. Pat. No. D941,152, issued Jan. 18, 2022; and International PCT Application Publication No. WO2019241246A1, published Dec. 19, 2019; all three of which are hereby incorporated herein by reference in their entirety. The earlier connectable beverage bottle was not manufacturable due to particular features of the corresponding earlier design and also did not have reliable connectability.
In a further related embodiment, compared to the earlier connectable beverage bottle, improvements to the connectable beverage bottle 100 include:
In a related embodiment, a connectable beverage bottle 100 can include:
In a related embodiment, the connectable beverage bottle 100 can be further configured such that:
Thus, in an embodiment, as shown in FIGS. 1-2, 9A-9B, and 16, a connectable beverage bottle 100 can include:
In a related embodiment, as shown in FIGS. 5 and 6, the hollow bottle body can further include:
In another related embodiment, as shown in FIGS. 9A-9B and 10, the connectable beverage bottle 100 can be configured with various features, to enable manufacturability and detachable connectability, such that:
In a further related embodiment, as shown in FIGS. 2 and 9A, the vertical bottle locking indentation 224 can be configured with an upper rounded indentation bulge 227 (which can also be referred to as a tapered rounded shelf 227), which is positioned in an upper part of the vertical bottle locking indentation 224, such that the upper rounded indentation bulge 227 forms the horizontal overhang 913.
In a related embodiment, as shown in FIG. 9A-9B, a bottom 107 of the hollow bottle body 103, can further include:
In another related embodiment, as shown in FIGS. 18A and 18B, the hollow bottle body 103 can further be configured such that:
In a related embodiment, as shown in FIGS. 9A-9B and 10, a left maximum lateral bulge depth 973 of the outward-curving left vertical bulge 1830, between a lower left bulge maximum point 972 and a lower left bulge minimum point 974, can be in a range of 5-10% of a maximum protrusion width 1027 of the vertical bottle locking protrusion 126; and a right maximum lateral bulge depth 977 of the outward-curving right vertical bulge 1840, between a lower right bulge maximum point 976 and a lower right bulge minimum point 978, can be in a range of 5-10% of a maximum protrusion width 1027 of the vertical bottle locking protrusion 126.
In a related embodiment, as shown in FIGS. 9A-9B and 10, a left maximum lateral indentation depth 983 of the inward-curving left vertical indentation 1850, between a lower left indentation maximum point 982 and a lower left indentation minimum point 984, can be in a range of 5-10% of a maximum indentation width 925 of the vertical bottle locking indentation 224; and a right maximum lateral indentation depth 987 of the inward-curving right vertical indentation 1860, between a lower right indentation maximum point 986 and a lower right indentation minimum point 988, can be in a range of 5-10% of a maximum indentation width 925 of the vertical bottle locking indentation 224.
In a related embodiment, the hollow bottle body 103 can be made from a sufficiently flexible material, such as a sufficiently flexible plastic material (with an appropriate wall thickness), such that limited ranges of the left and right maximum lateral bulge depths 973, 977 and the left and right maximum lateral indentation depth 983, 987, ensure that the vertical bottle locking protrusion 126 is laterally slidable 1614 into the corresponding bottle locking indentation 224 of the first like connectable beverage bottle, wherein the outward-curving left vertical bulges 1830, 1840 snap in place inside the inward-curving left and right vertical indentations 1850, 1860, such that the vertical bottle locking protrusion 126 snaps in place inside the vertical bottle locking indentation 224 (with a slight deformation of the vertical bottle locking protrusion 126 and the vertical bottle locking indentation 224 during the lateral sliding process).
Thus, in a related embodiment, as shown in FIGS. 3-4, 16A, 16B, 16C, and 17, a lower locking protrusion portion 327 of the vertical bottle locking protrusion 126 can be configured to be upward vertically slidable 1612 and laterally slidable 1614 into a lower locking indentation portion 428 of a corresponding vertical bottle locking indentation 224, such that that the lower portion 327 of the vertical bottle locking protrusion 126 is detachably interlocked with the corresponding vertical bottle locking indentation 224.
In a further related embodiment, as shown in FIGS. 3-4, 7, 16A, 16B, 16C, and 17, a first height 328 of a lower locking protrusion portion 327 (between the uniform horizontal levels 322, 324 of lower maximum bulge points 1832, 1842 and upper bulge transition points 1834, 1844) of the vertical bottle locking protrusion 126 and a second height 428 of a lower locking indentation portion 427 (between uniform horizontal levels 422, 424 of lower maximum indentation points 1852, 1862 and upper indention transition points 1854, 1864) of the corresponding vertical bottle locking indentation 224, can each be of a uniform height (i.e., the same height) and each can be in range of 20-60%, 30-50%, 35-45%, or 40%-48% of a bottle height 710 of the bottle body 103 of the connectable beverage bottle 100.
Thus, in a yet further related embodiment, as shown in FIGS. 3-4, 7, 16A, 16B, 16C, and 17, the hollow bottle body 103 can further include:
In a related embodiment, as shown in FIG. 13, an interlocked combination of connectable beverage bottles 100 can include:
Here has thus been described a multitude of embodiments of the connectable beverage bottle 100, and methods related thereto, which can be employed in numerous modes of usage.
The many features and advantages of the invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention, which fall within the true spirit and scope of the invention.
Many such alternative configurations are readily apparent and should be considered fully included in this specification and the claims appended hereto. Accordingly, since numerous modifications and variations will readily occur to those skilled in the art, the invention is not limited to the exact construction and operation illustrated and described, and thus, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.
1. A connectable beverage bottle, comprising:
a hollow bottle body, comprising:
a central cavity; and
a bottle top, including a bottle opening, such that the bottle opening provides access to the central cavity;
a sidewall, which forms the central cavity, wherein the sidewall comprises:
a vertical bottle locking protrusion, which is positioned on a first side of the sidewall; and
a vertical bottle locking indentation, which is positioned on a second side of the sidewall, such that the vertical bottle locking indentation is opposedly positioned relative to the vertical bottle locking protrusion;
such that the vertical bottle locking protrusion is configured to be slidable into a corresponding bottle locking indentation of a first like connectable beverage bottle, such that the connectable beverage bottle is connected to the first like connectable beverage bottle; and
such that the vertical bottle locking indentation is configured to slidably receive a corresponding bottle locking protrusion of a second like connectable beverage bottle, such that the connectable beverage bottle is connected to the second like connectable beverage bottle.
2. The connectable beverage bottle of claim 1, wherein the vertical bottle locking indentation is configured with a horizontal overhang from a bottom outer edge of the vertical bottle locking indentation to a top outer edge of the vertical bottle locking indentation.
3. The connectable beverage bottle of claim 2, wherein the horizontal overhang is in a range of 10-25% of a maximum depth of the vertical bottle locking indentation.
4. The connectable beverage bottle of claim 2, wherein the vertical bottle locking indentation is configured with an upper rounded indentation bulge in an upper part of the vertical bottle locking indentation, such that the upper rounded indentation bulge forms the horizontal overhang.
5. The connectable beverage bottle of claim 1, wherein a maximum protrusion width of the vertical bottle locking protrusion is in range of 25%-35% of a maximum bottle width of the hollow bottle body.
6. The connectable beverage bottle of claim 1, wherein the hollow bottle body further comprises:
a) a left front vertical indentation on a left side of the vertical bottle locking protrusion, wherein the left front vertical indentation is configured with a concave left inner surface; and
b) a right front vertical indentation on a right side of the vertical bottle locking protrusion, wherein the right front vertical indentation is configured with a concave right inner surface.
7. The connectable beverage bottle of claim 6, wherein a left opening angle, between an inner left tangent line of an inner end of the concave left inner surface and an outer left tangent line of an outer end of the concave left inner surface, is in a range of 35-45 degrees; and
wherein a right opening angle, between an inner right tangent line of an inner end of the concave right inner surface and an outer right tangent line of an outer end of the concave left inner surface, is in a range of 35-45 degrees.
8. The connectable beverage bottle of claim 7, wherein a left outward inclination angle, between a longitudinal center line of the hollow bottle body and the inner left tangent line of the inner end of the concave left inner surface, is in a range of 20-30 degrees; and wherein a right outward inclination angle, between the longitudinal center line of the hollow bottle body and the inner right tangent line of the inner end of the concave right inner surface, is in a range of 20-30 degrees.
9. The connectable beverage bottle of claim 8, wherein the left opening angle and the right opening angle are each substantially 30 degrees; and wherein the left outward inclination angle and the right outward inclination angle are each substantially 25 degrees.
10. The connectable beverage bottle of claim 7, wherein a maximum left opening width of the left front vertical indentation, between an outer left transition point at an outer end of the concave left inner surface and an inner left transition point at an inner end of the concave left inner surface, is in range of 75-85% of a maximum protrusion width of the vertical bottle locking protrusion; and wherein a maximum right opening width of the right front vertical indentation between an outer right transition point at an outer end of the concave right inner surface and an inner right transition point at an inner end of the concave right inner surface, is in range of 75-85% of the maximum protrusion width of the vertical bottle locking protrusion.
11. The connectable beverage bottle of claim 10, wherein the maximum left opening width and the maximum right opening width are each substantially 80% of the maximum protrusion width of the vertical bottle locking protrusion.
12. The connectable beverage bottle of claim 1, wherein a bottom of the hollow bottle body further comprises:
a) a flat portion; and
b) a central indentation, which is configured with a laterally elongated shape and is mirror symmetric relative to a longitudinal center line of the hollow bottle body.
13. The connectable beverage bottle of claim 12, wherein the central indentation further comprises:
an alternating pattern of concave edge portions and convex edge portions along a periphery of the central indentation, such that the alternating pattern of concave edge portions increase a torsional stiffness of the hollow bottle body.
14. The connectable beverage bottle of claim 13, wherein the alternating pattern of concave edge portions and convex edge portions further comprises:
a) a left front concave edge portion;
b) a right front concave edge portion;
c) a center front convex edge portion, which is positioned between the left front concave edge portion and the right front concave edge portion;
d) a left rear concave edge portion;
e) a right rear concave edge portion;
f) a center rear convex edge portion, which is positioned between the left rear concave edge portion and the right rear concave edge portion;
g) a left side convex edge portion, which is positioned between the left rear concave edge portion and the left front concave edge portion; and
h) a right side convex edge portion, which is positioned between the right rear concave edge portion and the right front concave edge portion.
15. The connectable beverage bottle of claim 1, wherein the vertical bottle locking protrusion further comprises:
an outward-curving left vertical bulge positioned on a lower outer left surface of the vertical bottle locking protrusion;
such that the outward-curving left vertical bulge is configured to taper from a left maximum bulge point of a left lower edge of the vertical bottle locking protrusion to an upper left bulge transition point, wherein the outward-curving left vertical bulge vanishes;
an outward-curving right vertical bulge positioned on a lower outer right surface of the vertical bottle locking protrusion,
such that the outward-curving right vertical bulge is configured to taper from a right maximum bulge point of a right lower edge of the vertical bottle locking protrusion to an upper right bulge transition point, wherein the outward-curving right vertical bulge vanishes and the vertical bottle locking protrusion becomes substantially straight; and
wherein the vertical bottle locking indentation further comprises:
an inward-curving left vertical indentation positioned on a lower outer left surface of the vertical bottle locking indentation;
such that the inward-curving left vertical indentation is configured to taper from a left maximum indentation of a left lower edge of the vertical bottle locking indentation to an upper left indentation transition point, wherein the inward-curving left vertical indentation vanishes;
an inward-curving right vertical indentation positioned on a lower outer right surface of the vertical bottle locking indentation,
such that the inward-curving right vertical indentation is configured to taper from a right maximum indentation of a right lower edge of the vertical bottle locking indentation to an upper right indentation transition point, wherein the inward-curving right vertical indentation vanishes;
such that the inward-curving left vertical indentation is configured to receive the outward-curving left vertical bulge;
such that the inward-curving right vertical indentation is configured to receive the outward-curving right vertical bulge; and
such that a lower portion of the vertical bottle locking protrusion is detachably locked in place inside a lower portion of the vertical bottle locking indentation;
such that the vertical bottle locking protrusion is configured to be vertically slidable into the corresponding bottle locking indentation of the first like connectable beverage bottle.
16. The connectable beverage bottle of claim 15, wherein a left maximum lateral bulge depth of the outward-curving left vertical bulge, between a lower left bulge maximum point and a lower left bulge minimum point, is in a range of 5-10% of a maximum protrusion width of the vertical bottle locking protrusion; and a right maximum lateral bulge depth of the outward-curving right vertical bulge, between a lower right bulge maximum point and a lower right bulge minimum point, is in a range of 5-10% of a maximum protrusion width of the vertical bottle locking protrusion.
17. The connectable beverage bottle of claim 16, wherein a left maximum lateral indentation depth of the inward-curving left vertical indentation, between a lower left indentation maximum point and a lower left indentation minimum point, is in a range of 5-10% of a maximum indentation width of the vertical bottle locking indentation; and a right maximum lateral indentation depth of the inward-curving right vertical indentation, between a lower right indentation maximum point and a lower right indentation minimum point, is in a range of 5-10% of a maximum indentation width of the vertical bottle locking indentation.
18. The connectable beverage bottle of claim 17, wherein the hollow bottle body is made from a flexible material, such that the vertical bottle locking protrusion is laterally slidable into the corresponding bottle locking indentation of the first like connectable beverage bottle.
19. The connectable beverage bottle of claim 15, wherein the hollow bottle body further comprises:
c) a lower locking protrusion portion of the vertical bottle locking protrusion, wherein the lower locking protrusion portion is positioned between uniform lower bulge horizontal levels of left and right lower maximum bulge points and uniform upper bulge horizontal levels of left and right upper bulge transition points; and
d) a lower locking indentation portion of the vertical bottle locking indentation, wherein the lower locking indentation portion is positioned between uniform lower indentation horizontal levels of left and right lower maximum indentation points and uniform upper indentation horizontal levels of left and right upper indentation transition points;
wherein a first height of the lower locking protrusion portion of the vertical bottle locking protrusion and a second height of the lower locking indentation portion of the vertical bottle locking indentation, are each of a uniform height, which is in range of 30-50% of a bottle height of the hollow bottle body.
20. The connectable beverage bottle of claim 1, wherein the hollow bottle body further comprises:
a) an upper screw portion; and
b) a main portion, which is below the upper screw portion;
wherein the main portion is left-right mirror symmetrical relative to a front-rear vertical center plane of the hollow bottle body.
21. A connectable beverage bottle, comprising:
a) a central cavity; and
b) a sidewall, which comprises:
a vertical bottle locking protrusion; and
a vertical bottle locking indentation;
such that the vertical bottle locking protrusion is configured to be slidable into a corresponding bottle locking indentation of a first like connectable beverage bottle, such that the connectable beverage bottle is connected to the first like connectable beverage bottle; and
such that the vertical bottle locking indentation is configured to slidably receive a corresponding bottle locking protrusion of a second like connectable beverage bottle, such that the connectable beverage bottle is connected to the second like connectable beverage bottle.
22. The connectable beverage bottle of claim 21, wherein the vertical bottle locking indentation is configured with a horizontal overhang from a bottom outer edge of the vertical bottle locking indentation to a top outer edge of the vertical bottle locking indentation.
23. The connectable beverage bottle of claim 22, wherein the horizontal overhang is in a range of 10-25% of a maximum depth of the vertical bottle locking indentation.
24. The connectable beverage bottle of claim 21, wherein a maximum protrusion width of the vertical bottle locking protrusion is in range of 25%-35% of a maximum bottle width of the connectable beverage bottle.
25. The connectable beverage bottle of claim 21, wherein the connectable beverage bottle further comprises:
a) a left front vertical indentation on a left side of the vertical bottle locking protrusion, wherein the left front vertical indentation is configured with a concave left inner surface; and
b) a right front vertical indentation on a right side of the vertical bottle locking protrusion, wherein the right front vertical indentation is configured with a concave right inner surface.
26. The connectable beverage bottle of claim 25, wherein a left opening angle, between an inner left tangent line of an inner end of the concave left inner surface and an outer left tangent line of an outer end of the concave left inner surface, is in a range of 35-45 degrees; and
wherein a right opening angle, between an inner right tangent line of an inner end of the concave right inner surface and an outer right tangent line of an outer end of the concave left inner surface, is in a range of 35-45 degrees.
27. The connectable beverage bottle of claim 26, wherein a left outward inclination angle, between a longitudinal center line of the connectable beverage bottle and the inner left tangent line of the inner end of the concave left inner surface, is in a range of 20-30 degrees; and wherein a right outward inclination angle, between the longitudinal center line of the connectable beverage bottle and the inner right tangent line of the inner end of the concave right inner surface, is in a range of 20-30 degrees.
28. The connectable beverage bottle of claim 27, wherein a maximum left opening width of the left front vertical indentation, between an outer left transition point at an outer end of the concave left inner surface and an inner left transition point at an inner end of the concave left inner surface, is in range of 75-85% of a maximum protrusion width of the vertical bottle locking protrusion; and wherein a maximum right opening width of the right front vertical indentation between an outer right transition point at an outer end of the concave right inner surface and an inner right transition point at an inner end of the concave right inner surface, is in range of 75-85% of the maximum protrusion width of the vertical bottle locking protrusion.
29. The connectable beverage bottle of claim 21, wherein a bottom of the connectable beverage bottle further comprises:
a) a flat portion; and
b) a central indentation, which is configured with a laterally elongated shape and is mirror symmetric relative to a longitudinal center line of the connectable beverage bottle, wherein the central indentation further comprises:
an alternating pattern of concave edge portions and convex edge portions along a periphery of the central indentation, such that the alternating pattern of concave edge portions increase a torsional stiffness of the connectable beverage bottle.
30. The connectable beverage bottle of claim 21, wherein the vertical bottle locking protrusion further comprises:
an outward-curving left vertical bulge positioned on a lower outer left surface of the vertical bottle locking protrusion;
such that the outward-curving left vertical bulge is configured to taper from a left maximum bulge point of a left lower edge of the vertical bottle locking protrusion to an upper left bulge transition point, wherein the outward-curving left vertical bulge vanishes;
an outward-curving right vertical bulge positioned on a lower outer right surface of the vertical bottle locking protrusion,
such that the outward-curving right vertical bulge is configured to taper from a right maximum bulge point of a right lower edge of the vertical bottle locking protrusion to an upper right bulge transition point, wherein the outward-curving right vertical bulge vanishes and the vertical bottle locking protrusion becomes substantially straight; and
wherein the vertical bottle locking indentation further comprises:
an inward-curving left vertical indentation positioned on a lower outer left surface of the vertical bottle locking indentation;
such that the inward-curving left vertical indentation is configured to taper from a left maximum indentation of a left lower edge of the vertical bottle locking indentation to an upper left indentation transition point, wherein the inward-curving left vertical indentation vanishes;
an inward-curving right vertical indentation positioned on a lower outer right surface of the vertical bottle locking indentation,
such that the inward-curving right vertical indentation is configured to taper from a right maximum indentation of a right lower edge of the vertical bottle locking indentation to an upper right indentation transition point, wherein the inward-curving right vertical indentation vanishes;
such that the inward-curving left vertical indentation is configured to receive the outward-curving left vertical bulge;
such that the inward-curving right vertical indentation is configured to receive the outward-curving right vertical bulge; and
such that a lower portion of the vertical bottle locking protrusion is detachably locked in place inside a lower portion of the vertical bottle locking indentation;
such that the vertical bottle locking protrusion is configured to be vertically slidable into the corresponding bottle locking indentation of the first like connectable beverage bottle;
wherein a left maximum lateral bulge depth of the outward-curving left vertical bulge, between a lower left bulge maximum point and a lower left bulge minimum point, is in a range of 5-10% of a maximum protrusion width of the vertical bottle locking protrusion; and a right maximum lateral bulge depth of the outward-curving right vertical bulge, between a lower right bulge maximum point and a lower right bulge minimum point, is in a range of 5-10% of a maximum protrusion width of the vertical bottle locking protrusion; and wherein a left maximum lateral indentation depth of the inward-curving left vertical indentation, between a lower left indentation maximum point and a lower left indentation minimum point, is in a range of 5-10% of a maximum indentation width of the vertical bottle locking indentation; and a right maximum lateral indentation depth of the inward-curving right vertical indentation, between a lower right indentation maximum point and a lower right indentation minimum point, is in a range of 5-10% of a maximum indentation width of the vertical bottle locking indentation;
wherein the connectable beverage bottle is made from a flexible material, such that the vertical bottle locking protrusion is laterally slidable into the corresponding bottle locking indentation of the first like connectable beverage bottle.