CN111447854A - Backpack with heat insulation device - Google Patents

Abstract

The present invention provides a thermal insulation device that may include an aperture with a water-tight closure that allows access to a chamber within the thermal insulation device. The closure may help prevent any fluid from leaking into and out of the insulation if the insulation is tipped or in any configuration other than upright. The closure may also prevent any fluid from penetrating the chamber if the insulation is exposed to precipitation, other fluids or immersion in water. The insulation may include a back panel support structure and shoulder straps to allow the device to be carried on the body as a backpack. This configuration creates an insulating chamber that is substantially impermeable to water and other liquids when the closure is sealed.

Description

Backpack with heat insulation device

Cross Reference to Related Applications

This application claims priority to U.S. application No.15/845,73 filed on 18/12/2017, which is a partially-continuing application of U.S. application No.15/451,064 filed on 6/3/2017, U.S. application No.15/451,064 is a partially-continuing application of U.S. application No.15/261,407 filed on 9/2016, U.S. application No.15/261,407 is a partially-continuing application of U.S. application No.15/154,626 filed on 13/5/2016, U.S. application No.15/154,626 is a partially-continuing application of U.S. application No.14/831,641 filed on 20/2015, and U.S. application No.14/831,641 is a partially-continuing application of U.S. application No.14/479,607 filed on 8/9/2014, i.e., current U.S. patent No.9,139,352, which claims priority to U.S. application No.61/937,310 filed on 7/2014. U.S. application No.15/261,407 filed on 9/2016 also claims priority for provisional applications, i.e., U.S. application No.62/292,024 filed on 5/2/2016, U.S. application No.62/299,421 filed on 24/2/2016, and U.S. application No.62/299,402 filed on 24/2/2016. All of the above applications are fully incorporated by reference herein for any and all non-limiting purposes.

Technical Field

The present disclosure relates generally to non-rigid portable insulation devices or containers for keeping food and beverages cold or warm, and more particularly to an insulation device having a waterproof closure.

Background

Coolers are designed to keep food and beverages at a lower temperature. The container may be constructed of a rigid material such as metal or plastic or a flexible material such as fabric or foam. The cooler may be designed to improve portability. For example, the rigid container may be designed to contain wheels for ease of transport, or the cooler may be designed to be smaller to allow an individual to carry the entire device. Non-rigid containers may be provided with straps and/or handles, and in some cases may be made of lighter weight materials to facilitate movement. The non-rigid cooler with maximum portability can be designed with a hole in the top that allows access to the contents of the cooler. The aperture may also be provided with a closure.

Disclosure of Invention

This summary is provided to introduce a selection of general concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the invention.

Aspects disclosed herein may relate to an insulation device having one or more of the following structures: (1) a waterproof closure; (2) a housing; (3) a liner; (4) an insulation layer freely floating between the outer shell and the inner liner; or (5) a waterproof storage compartment.

Brief description of the drawings

The foregoing summary, as well as the following detailed description of embodiments, is better understood when considered in conjunction with the appended drawings. In the drawings, like reference characters designate the same or similar elements throughout the various views in which the reference characters appear.

FIG. 1A illustrates a front left perspective view of an example insulation device according to an aspect of the present disclosure;

FIG. 1B illustrates a front perspective view of the example thermal shield of FIG. 1A without a shoulder strap;

FIG. 2 illustrates a rear perspective view of the example insulation of FIG. 1A without a shoulder strap;

FIG. 3A illustrates a top perspective view of the example insulation assembly of FIG. 1A without a shoulder strap;

FIG. 3B illustrates a top view of a portion of the example insulation of FIG. 1A;

FIG. 3C illustrates a portion of an alternative top perspective view of the example insulation assembly of FIG. 1A;

FIG. 4 illustrates a bottom perspective view of the example insulation assembly of FIG. 1A;

FIG. 5A shows a schematic view of a cross-sectional view of the example insulation apparatus of FIG. 1A;

FIG. 5B illustrates another schematic view of an enlarged portion of a cross-sectional view of the example insulation assembly of FIG. 1A;

FIG. 6 illustrates an exemplary process flow diagram for forming an insulation assembly;

FIGS. 7A-7J illustrate an exemplary method of forming an insulation unit;

fig. 8A and 8B depict perspective views of alternative example insulation devices.

Fig. 9 depicts a portion of an example closure and an example test method for determining whether an insulation device retains contents therein.

FIG. 10 depicts an example test for determining the strength of an insulation.

FIG. 11 illustrates a front view of another example insulation apparatus.

FIG. 12 illustrates a side view of the example insulation of FIG. 11.

FIG. 13 illustrates a front perspective view of an exemplary insulation device in an alternative configuration.

FIG. 14A illustrates a side cross-sectional view of the example insulation of FIG. 11.

Fig. 14B shows an enlarged portion of fig. 14A.

FIG. 15 shows a schematic exploded view of an exemplary insulation layer for the exemplary insulation unit of FIG. 11.

FIG. 16A illustrates a portion of another example insulation device.

FIG. 16B illustrates a side view of the example insulation of FIG. 16A.

FIG. 17 illustrates a perspective view of another example insulation device.

FIG. 18 shows a front view of the thermal shield of FIG. 17.

FIG. 19 shows a rear view of the thermal shield of FIG. 17.

FIG. 20 shows a side view of the thermal shield of FIG. 17.

FIG. 21 shows a cross-sectional view of the thermal shield of FIG. 17.

FIG. 22 shows a schematic exploded view of an exemplary insulation layer for the exemplary insulation unit of FIG. 17.

FIG. 22A illustrates a front view of an example insulation layer for the example insulation device of FIG. 17.

Fig. 23 illustrates an exemplary testing method.

FIG. 24 illustrates a front view of an example insulation device, according to an aspect of the present disclosure;

FIG. 25 illustrates a side view of the example insulation of FIG. 24.

FIG. 26 illustrates a rear view of the example insulation of FIG. 24.

FIG. 27 illustrates a top view of the example insulation of FIG. 24.

FIG. 28 illustrates a bottom view of the example insulation of FIG. 24.

FIG. 29A illustrates a cross-sectional view of the example insulation arrangement of FIG. 24.

FIG. 29B illustrates a portion of a cross-sectional view of the example insulation apparatus of FIG. 24.

FIG. 30 illustrates an isometric view of an example insulation layer of the example insulation device of FIG. 24.

FIG. 31 shows an alternative embodiment of an inner liner of the insulation unit.

FIG. 32 shows the thermal shield of FIG. 24 in an open position.

FIG. 32A illustrates an example manufacturing method for forming an insulating device.

FIG. 33 illustrates an example method of securing a handle to an insulation device.

Fig. 34 illustrates an exemplary testing method.

FIG. 35A illustrates a front view of another example insulation apparatus.

FIG. 35B illustrates a side view of the example insulation apparatus of FIG. 35A.

FIG. 35C illustrates a rear view of the example insulation of FIG. 35A.

FIG. 35D illustrates a top view of the example insulation of FIG. 35A.

FIG. 35E illustrates a bottom view of the example insulation assembly of FIG. 35A.

FIG. 35F illustrates a cross-sectional view of the example insulation apparatus of FIG. 35A.

Fig. 36A shows a partial cross-sectional view of an exemplary closure.

FIG. 36B illustrates a perspective top view of the example insulation of FIG. 36A.

Fig. 37 depicts an isometric view of a front portion of an insulation device according to one or more aspects described herein.

FIG. 38 depicts an isometric view of a back portion of the same thermal shield of FIG. 37, according to one or more aspects described herein.

FIG. 39 depicts a front elevation view of an insulation device according to one or more aspects described herein.

Fig. 40A depicts a side elevation view of an insulation device according to one or more aspects described herein.

Fig. 40A depicts a right side elevation view of an insulation device according to one or more aspects described herein.

Fig. 40B depicts another embodiment of a right side elevation view of an insulation device according to one or more aspects described herein.

FIG. 41 depicts a left side elevational view of a second side of an insulation device according to one or more aspects described herein.

FIG. 42 depicts a front view of a rear side of an insulation device according to one or more aspects described herein.

FIG. 43 schematically depicts a cross-sectional view of an insulation device according to one or more aspects described herein.

Fig. 44 depicts another isometric view of the thermal shield of fig. 37 in accordance with one or more aspects described herein.

FIG. 45 depicts an isometric view of another embodiment of an insulation device according to one or more aspects described herein.

Fig. 46 schematically depicts one embodiment of a loose-loop fastener according to one or more aspects described herein.

Detailed Description

In the following description of various examples and components of the present disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration various example structures and environments in which aspects of the disclosure may be practiced. It is to be understood that other structures and environments may be utilized and structural and functional modifications may be made in accordance with the specifically described structures and methods without departing from the scope of the present disclosure.

Additionally, although "front," "back," "top," "base," "bottom," "side," "forward" and "rearward" and the like may be used in this specification to describe various example features and elements, these terms are used herein for convenience, e.g., based on the example orientations shown in the figures or orientations in conventional use. Nothing in this specification should be construed as requiring a specific three-dimensional orientation or spatial orientation of structures without departing from the scope of the claims.

Fig. 1-4 depict an exemplary insulation device 10 that may be configured to keep stored desired contents cold or warm for an extended period of time. The insulation may generally include an outer shell 501, a closure 301, an insulation layer 502, and an inner liner 500. As shown in fig. 3C, the liner 500 forms a cavity or receptacle 504 for receiving the desired contents therein. As shown in FIG. 1A, various handles, straps, and webs (e.g., 210, 212, 218, 224) may also be included on the insulation 10 for carrying, holding, or securing the insulation 10.

The insulation device 10 may be configured to keep the desired contents stored in receptacle 504 cold or warm for an extended period of time. In one example, the insulation 10 may also be designed to retain water inside the interior chamber or receptacle 504, and the insulation 10 may be configured to be "waterproof" with respect to the exterior. In other words, when the closure 301 is in the closed position, the insulation 10 may form a "water-tight" inside the liner 500, and water cannot leak from the outside of the liner 500 into the liner 500 or out of the inside of the liner 500.

Fig. 4 depicts a bottom view of the thermal shield 10. As shown in fig. 4, the thermal shield apparatus 10 may include a base 215 and a base support ridge 400. The base support ridge 400 may provide structural integrity and support to the thermal shield apparatus 10 when the thermal shield apparatus 10 is placed on a surface.

In one example, as shown in fig. 3A and 4, the top of the housing 501 has a first peripheral circumference (T)_cir) And the bottom of the housing 501 has a second peripheral circumference or base circumference 401 (B)_cir). When folded into a cylinder, the circumference of the top of the housing 501 may be equal to the circumference of the bottom, and B_cirMay be equal to T_cir. In one example, both the first circumference and the second circumference may have an elliptical shape to form an elongated or elliptical cylinder. In one example, top outer layer 501a may have a length of 23.5 inches and a width of 5.5 inches. Thus, the top outer layer 501a may have an aspect ratio of about 4.3. Additionally, the base 215 may have a length of 20.0 inches and a width of 12.25 inches. Thus, the aspect ratio of the base 215 is about 1.6. In this example, the upper wall may have an aspect ratio greater than the aspect ratio of the base.

In one example, as shown in fig. 5A, the inner layer or liner 500 may be formed from a top liner portion or first liner portion 500a, an inner layer middle portion or second portion 500b, and an inner layer bottom portion 500 c. The top liner portion 500a, the inner layer middle portion 500b, and the inner layer bottom portion 500c are secured together, such as by welding, to form a chamber 504. Chamber 504 may be a "dry bag" or vessel for storing contents. In one example, after the top liner portion 500a, the inner layer middle portion 500b, and the inner layer bottom portion 500c are secured or joined together, a tape (such as a TPU tape) may be placed over the seams joining the sections of the chamber 504. Thus, the liner 500 may retain the liquid in the chamber 504 of the insulation 10 or may prevent the liquid contents from entering the chamber 504 of the insulation 10. In one example, as will be described in further detail below, the liner 500 may be suspended in the insulation apparatus 10 solely by the closure 301.

Insulation layer 502 may be located between liner 500 and outer shell 501 and may be formed as an insulator to help maintain the internal temperature of receptacle 504. In one example, the insulation layer 502 may be a free floating layer that is not directly attached to the outer shell 501 or the inner liner 500. The insulation layer 502 may be formed from a first portion 502a and a second portion or base portion 502 b. The first portion 502a and the second portion 502b may be formed of an insulating foam material, as will be described in further detail below.

The first portion 502a may have a rectangular shape that retains its shape when folded into a cylinder and placed between the liner 500 and the outer shell 501 and when closed from above by the outer shell 501. The insulation layer 502 retains its shape, which results in the insulation device 10 having a substantially elliptical cylindrical shape. Thus, similar to the enclosure 501, the top of the insulation layer 502 has a first circumferential circumference and the bottom of the insulation layer 502 has a second circumferential circumference. The first circumferential circumference of the insulation layer 502 may be equal to the second circumferential circumference of the insulation layer 502.

A base portion 502b may be included to provide additional insulation along the insulation 10 at the base 215. The base portion 502b may be formed in an oval shape to close the lower opening 506 formed by the cylindrical shape of the insulation layer 502.

Additionally, the base portion of the thermal isolation device 10 may include an additional base support layer 505, which increases the thermal isolation and structural integrity of the thermal isolation device 10. The base support layer 505 may also provide additional protection around the bottom of the thermal isolation device 10. In one example, the base support layer 505 may be formed from EVA foam. Base support layer 505 may include a specific design, such as a logo or name, that may be molded or embossed directly into the material. The base support ridges 400 that provide structural integrity and support to the thermal isolation device 10 may also be molded or stamped directly into the base support layer 505. In one example, the base support layer 505 and the base portion 502b can be separated to facilitate assembly.

The housing 501 may be formed of a top outer or first housing portion 501a, an outer or second housing portion 501b, and a bottom or third housing portion 501 c. The housing 501 provides a covering for the insulation 10. In one example, the insulation layer 502 may be freely suspended within the enclosure 501. However, it is contemplated that any of these layers may be secured or formed as a unitary, unitary structure. The housing 501 may be configured to support one or more optional handles or straps (e.g., 210, 212, 218). In this regard, the housing 501 may also include a plurality of reinforced areas or patches 220 configured to help structurally support optional handles or straps (e.g., 210, 212, 218). Handles or straps (e.g., 210, 212, 218) and other attachments may be sewn using stitches 222, however in one example, these stitches 222 do not extend through the housing 501 into the insulation layer 502. Rather, these sutures are sewn to the patch 220, and the patch 220 may be RF welded to the housing 501, or attached to the housing by any other method disclosed herein.

As shown in fig. 5A, the first housing portion 501a may be attached to the second housing portion 501b by stitching 510. However, the first housing portion 501a may be attached to the second housing portion 501b using any known method (e.g., polymer welding, stitching, or other adhesive) around the entire perimeter of the second housing portion 501 b.

Additionally, in one example, base support layer 505 (which may be formed of EVA foam) may be secured to bottom or third housing portion 501c by lamination. The second housing portion 501b may be secured to the third housing portion 501c and the base support layer 505 by polymer welding (e.g., RF welding), stitching, or adhesive.

The thermal shield apparatus 10 may include two handles 210 that are connected to a front side 216 of the thermal shield apparatus 10 and a rear side 217 of the thermal shield apparatus 10. In one particular example, the shoulder straps 218 may be attached to the collar 214 (which is attached to the side handle 212) via plastic or metal clamps to facilitate shouldering of the insulation apparatus 10. The insulation 10 may also include side handles 212 on each end of the cooler. Side handles 212 provide the user with an alternative option of grasping and carrying the insulation.

The handle 210 may also form a slot for receiving the loop 214 near the bottom of the attachment point of the handle to the insulation unit 10. The ring 214 may be secured to the carrying handle 210 and attachment points 213 by stitching, adhesive, or polymer welding, and may be used to help secure or tether the insulation apparatus 10 to another structure such as a vehicle, vessel, camping equipment, or various items such as keys, kettles, additional straps, bottle openers, tools, other personal items, and the like.

Additionally, as shown in FIG. 2, webbing formed as loops 507 may be sewn to the straps to form a handle 210 on the back of the thermal isolation device 10. The loops 224 may be used to attach items (e.g., a security clasp, a dry bag) to the insulation 10. Side handles 212 may also provide the user with an alternative option of securing the insulation unit 10 to a structure.

In one example, the carrying handle 210, side handles 212, shoulder straps 218 and attachment points 213 may be constructed from nylon webbing. Other materials may include polypropylene, neoprene, polyester, Dyneema fabric, Kevlar fabric, cotton fabric, leather, plastic, rubber, or rope. The carrying handle 210 and the side handle 212 may be attached to the housing by stitching, adhesive, or polymer welding.

Shoulder straps 218 may be attached to the insulation 10 at attachment points 213. The attachment point 213 may be a strap that also forms a slot for receiving the loop 214. The loop 214 may provide attachment of a shoulder strap 218.

In one example, ring 214 can be an acetal D ring. The ring 214 may be plastic, metal, ceramic, glass, alloy, polypropylene, neoprene, polyester, Dyneema and Kevlar, cotton, leather, rubber or rope. The loop 214 may include other shapes, sizes, and configurations other than a "D" shape. Examples include circular rings, square rings, rectangular rings, triangular rings, or rings having multiple connection points. Additionally, a pocket or other storage space may be attached to the exterior of the insulation 10 in addition to the carrying handle 210 and side handles 212.

In one example, the closure 301 may be substantially waterproof and may also be a barrier that prevents liquid contents from entering or exiting the insulation. Additionally, the closure 301 may be liquid impermeable, thereby preventing liquid penetration of the insulation 10 in any orientation of the insulation 10. Maintaining the closure 301 in a flat plane may also help provide a water tight seal.

Fig. 3A-3C depict top views of the insulation arrangement 10 and depict the top outer or first housing portion 501a and the closure 301. The top outer layer 501a depicted in fig. 3A may be secured to the closure 301. In one example, the closure 301 may be a waterproof zipper assembly and may achieve a water tightness of 7psi above atmospheric pressure during testing with compressed air. However, in other examples, the water tightness of the closure 301 may be 5psi to 9psi above atmospheric pressure, and in other examples, the water tightness of the closure 301 may be 2psi to 14psi above atmospheric pressure. The waterproof zipper assembly may include a slider body 303 and a pull tab 302. Fig. 3B shows an enlarged view of the closure 301, which comprises a bottom stop 304 and a tooth or chain 305. In one particular example, the waterproof zipper assembly may be constructed of plastic or other non-metallic teeth 305 to prevent injury when food or beverages are removed from the interior chamber 504.

As shown in fig. 3C, the closure 301 is open or unzipped, and the apertures 512 formed in the outer shell 501 and the liner 500 are open and expose the liner 500 and the interior chamber 504. It is contemplated that the closure or seal 301 may include various sealing means in addition to the waterproof zipper assembly depicted in fig. 3A-3C. For example, the liner 500 and shell 501 may be sealed using Velcro, snaps, buckles, zippers, excess material that is folded multiple times to form a seal (such as a roll-down seal), seals, metal or plastic clips, and combinations thereof.

Fig. 8A and 8B depict another example insulation 1010 having similar features and functions to the examples discussed above with respect to fig. 1A-5B, where like reference numbers refer to the same or similar elements. However, in this example, a loop patch 1015 may be provided at the front of the bag. The loop patch 1015 can be configured to receive multiple types of articles or corresponding groups of hooks that can be placed onto surfaces anywhere on various articles, such as fishing lures, keys, bottle openers, card holders, tools, other personal items, and the like. The loop patch 1015 may include a logo, company name, personalization, or other customization. The loop patch 1015 may be formed of needle loops and may have a high cycle life of over 10,000 closures. Additionally, the loop patch may be washable and uv resistant to prevent discoloration. The loop patch may be selected based on the desired shear and peel strength, depending on the type of material to be secured to the insulation 1010.

Additionally, in the example shown in fig. 8A and 8B, a strip of material 1013 may be provided along the bottom of the bag, which may provide additional strength and reinforcement to the outer shell 1501 and may improve the aesthetics of the insulating device 1010.

An example method of forming the thermal shield apparatus 10 will now be described. A general overview of an exemplary assembly process of the thermal shield apparatus 10 is schematically depicted in fig. 6. However, the various steps do not necessarily have to be performed in the order described. Portions for forming liner 500, outer shell 501, and insulation layer 502 may first be formed or cut to size, as shown in step 602. In step 604, the cap assembly 300 may be assembled to the closure 301. In step 606, the liner 500 may be formed, and in step 608, the cap assembly 300 may be welded to the liner 500. In step 610, the housing 501 may be formed. In step 612, the insulation layer 502 may be assembled, and in step 616, the insulation layer 502 may be placed into the liner. Finally, in step 618, the cap assembly 300 may be secured to the housing 501.

Referring to step 602, as shown in fig. 7A and 7B, a liner top portion or first liner portion 500a and a top outer layer 501a (which form the cap assembly 300) may be formed or cut to size. Fig. 7C shows a second portion or base portion 502b of the insulation layer 502 cut or sized from the raw foam. In this example, the base portion 502b is cut out from the stock foam 530 by the cutting tool 700. In one example, the cutting tool 700 may be formed in the shape of the base portion 502 b.

Referring now to step 604 and fig. 7D, the top outer layer 501a and top liner portion 500a may be secured to the closure 301 to form the cap assembly 300, and the top outer layer 501a and top liner portion 500a may be secured to the closure 301 in a flat horizontal plane. Referring to fig. 5A-5B, the top outer layer 501a may be attached to the closure 301 by a polymer weld or adhesive. Specifically, as schematically shown in fig. 5B, the closure 301 may be provided with a first flange 301a and a second flange 301B, which may form a waterproof zipper strip 306. The top outer layer 501a may be attached directly to the top surface of the first and second flanges 301a, 301b of the closure 301. In one example, the first and second flanges 301a and 301b may be RF welded to the bottom side of the top outer layer 501 a. In another example, as shown in fig. 7E, the top liner portion 500a may be provided with a tab 515. During assembly, the tabs 515 may help hold the outer strip of the top liner portion 500a in place during assembly and may be removed after the cap assembly 300 is formed.

In one example, the top liner portion 500a may be attached to the structure of the insulation apparatus 10 as schematically shown in fig. 5B. In particular, top liner portion 500a may be attached to the bottom of closure 301. For example, as shown in fig. 5B, the first end 540a and the second end 540B of the top liner portion 500a may be attached to the bottom side of the first flange 301a and the second flange 301B. The top liner portion 500a and top outer layer 501a may be attached to the closure 301 by polymer welding or adhesive. Polymer welding includes both internal and external methods. External or thermal methods may include hot gas welding, hot wedge welding, hot plate welding, infrared welding, and laser welding. Internal methods may include mechanical welding and electromagnetic welding. Mechanical methods may include spine welding, stir welding, vibration welding, and ultrasonic welding. Electromagnetic methods may include resistance welding, implant welding, electrofusion welding, induction welding, dielectric welding, RF (radio frequency) welding, and microwave welding. The welding may be performed in a flat or horizontal plane to maximize the efficiency of the polymer welding to the build material. Thus, a strong, watertight seam may be formed to prevent water or fluid from escaping from the interior chamber 504 or entering the interior chamber 504.

In a particular example, the polymer welding technique used to connect the top liner portion 500a to the bottom of the enclosure 301 may include RF welding. RF welding techniques provide water-resistant seams that prevent water or any other fluid from penetrating the seam at pressures up to 7psi above atmospheric pressure. Accordingly, the insulation 10 may be inverted or submerged and prevented from seeping into or leaking out of the interior chamber 504 formed by the liner 500. In one example, the insulation 10 may be submerged to a depth of about 16 feet before a water leak occurs. However, it is contemplated that the depth may range from about 11 feet to 21 feet or 5 feet to 32 feet before any leakage occurs.

Referring next to step 606 and fig. 7F, inner layer middle portion 500b may be formed by RF welding. As shown in fig. 7F, the inner layer middle portion 500b may be formed from a rectangular piece of material. The inner layer middle portion 500b may also be secured to the inner layer bottom portion 500c in a subsequent step that is not shown.

Referring to step 608 and fig. 7G and 7H, an RF welding operation may be used to secure the inner layer middle portion 500b and the inner layer bottom portion 500c to the top cap assembly 300.

Referring to step 610, the second housing portion 501b and the third housing portion 501c supporting the base support layer 505 may be RF welded to construct a housing 501 for the thermal isolation device 10. In one example, as schematically shown in FIG. 5A, a top outer layer 501a may be sewn to the perimeter of a second housing portion 501b to form the housing 501 of the insulation device. A fabric adhesive may be used to cover the stitched seam edges of second housing portion 501b and top outer layer 501 a. This helps to close or engage the outer shell 501 around the insulation layer 502.

Referring to step 612 and fig. 7I, an insulation layer 502 may be constructed. In one example, the first portion 502a of the insulating layer 502 may be formed in a rectangular shape and may be fixed at a smaller side of the rectangle using a double-sided adhesive tape to form a cylindrical shape. The second portion or base portion 502b may be formed in an elliptical shape that may have a circumference that is less than the circumference of the cylindrical shape of the first portion 502 a. The second portion 502b may also be secured to the first portion 502a using double-sided adhesive tape to form the insulating layer 502. In one example, double-sided tape may be placed around the inner perimeter of the cylinder of the first portion 502a or around the outer perimeter of the base portion 502b, and the base 502b may be adhered to the first portion 502 a. Other methods of securing the base portion 502b to the first portion 502a to form the thermal shield 502 are also contemplated, such as adhesives or polymer welding.

Referring to step 614, the assembled insulation layer 502 may be placed into the enclosure 501. In step 616, the formed liner 500 and cap assembly 300 may be placed into insulation layer 502.

Finally, in step 618, the cap assembly 300 may be sewn to the housing 501 to form a seam 520, as schematically depicted in fig. 5A. As such, neither liner 500 nor outer shell 501 need be bonded to insulation layer 502. In addition, the liner 500 is only connected to the closure 301, and the closure 301 holds the liner and the outer shell 501 together, which makes the manufacturing process simpler. After the header assembly 300 is sewn to the shell 501, fabric glue is added to cover the original edges near the seam 520. Thus, the top seam 520 may be the primary seam on the thermal barrier 10 that is formed by stitching only.

In one particular example, the inner liner 500 and outer shell 501 may be constructed of a double laminated TPU nylon fabric. Nylon fabric may be used as the base material for the inner liner 500 and outer shell 501, and may be coated with a TPU laminate on each side of the fabric. The TPU nylon fabric used in one particular example is 0.6 mm thick, is water resistant, and has antimicrobial additives that meet all the requirements of the food and drug administration. However, it is contemplated that the fabric used to construct the insulation includes antimicrobial substances to create a mold-free environment that is safe for food-contact surfaces. In one particular example, the nylon can be 840d nylon with TPU. Alternative materials for making the inner shell or chamber 504 and outer shell 501 include PVC, TPU coated nylon, coated fabric, and other weldable and waterproof fabrics.

Closed cell foam may be used to form an insulating layer 502 between the liner 500 and the outer shell 501. In one example, insulation layer 502 is 1.0 inches thick. In one example, the thermal insulation layer 502 may be formed from an NBR/PVC blend or any other suitable blend. The thermal conductivity of an example thermal insulation layer 502 may be in the range of 0.16-0.32 btu.in/(hour sqft ° F), and the density of the thermal insulation layer 502 may be in the range of 0.9 to 5lbs/ft³Within the range of (1). In one example, the thermal conductivity of the thermal insulation layer 502 may be in the range of 0.25 btu.in/(hour sqft ° F), and the density of the thermal insulation layer 502 may be 3.5lbs/ft³。

The foam base may be made from an NBR/PVC blend or any other suitable blend. In addition to the base portion 502b of the insulating layer 502, the insulating device 10 may also include an outer base support layer 505 composed of foam, plastic, metal, or other material. In one example, the base portion 502b may be separate from the base support layer. In one example, the base portion 502b is 1.5 inches thick. Additionally, as shown in fig. 5A, the EVA foam base support layer 505 may be 0.2 inches thick. Although the base support layer 505 is laminated to the base outer layer or third housing portion 501c, in alternative examples, the base support layer 505 may be attached to the bottom of the base portion 502b by co-molding, polymer welding, adhesives, or any known method.

Thermal gain tests were performed on the exemplary insulation 10. The purpose of the thermal gain test was to determine how long the insulation could maintain a temperature below 50 ° f in a 106 ° f ± 4 environment, where the amount of ice depends on the internal capacity of the insulation.

The process is as follows:

1. the oven was opened and set to 106 ° f ± 4. The oven was allowed to stabilize for at least one hour.

2. The chart recorder is opened. The recorder should be connected with three type J thermocouples to plot the following temperatures: (1) a test unit, (2) an oven, and (3) an indoor environment.

3. The test unit was stabilized by filling it to half its capacity with ice water and allowed to stand at room temperature (72 ° f ± 2) for 5 minutes.

After 4.5 minutes, the contents were poured out and the type J thermocouple end was immediately attached to the inner bottom center of the cell. The ends of the thermocouple wires must be flush with the interior bottom surface and secured with adhesive masking tape.

5. The correct amount of ice is poured in to ensure that the thermocouple wires do not move. The amount of ice is 4 pounds per cubic foot in terms of the internal capacity of the unit.

6. The lid was closed and the test unit was placed inside the oven.

7. And closing the oven to ensure the thermocouple lead to work normally.

8. Mark the beginning of the chart recorder.

Equipment: 1. oven 2, ice 3, chart recorder 4, type J thermocouple (3). As a result: 1. cold insulation time: elapsed time from <32 ° f to 50 ° f in decimal hours. 2. Heat gain Rate (F/Hr): (50F-32F.)/elapsed time 18F ÷ elapsed time

In one test of the example insulation, assuming a capacity of 26.5 quarts and a test using 3.542 pounds of ice, the thermal gain rate was equal to 1.4 degF/hr.

The ability of the insulation 10 to withstand internal leaks can also be tested to see how well the insulation retains the contents stored in the storage compartment or receptacle 504. In one example test, the insulation 10 may be filled with a liquid (such as water) and then inverted for a predetermined period of time to test whether a moisture leak has occurred. In this example, the insulation 10 is filled with a liquid until approximately half of the volume of the receptacle 504 is filled (e.g., 3 gallons of water), and then the closure 301 is fully closed to ensure that the slider body 303 is fully sealed into the horseshoe 308. The entire insulation 10 is then inverted and held inverted for a period of 30 minutes. The insulation 10 is then checked for any leaks.

The insulation 10 may be configured to remain inverted for 30 minutes without any water escaping or exiting the receptacle 504. In an alternative example, the insulation may be configured to remain inverted for 15 minutes to 120 minutes without any water escaping or exiting receptacle 504. In order to perform this test, it may be helpful to lubricate the closure to ensure that it is adequately sealed. For example, as shown in fig. 9, the horseshoe-shaped portion 308 of the closure member 301 is provided with a lubricant 309.

The fabric forming the outer shell 501, inner liner 500 and insulation layer 502 of the insulation unit 10 may also be tested for strength and durability. In one example, the test may be designed as a puncture test. Specifically, the test may be designed as the ASTM D751-06 Sec.22-25 screwdriver penetration test. In one example, the insulation 10 can withstand a piercing force of 35 pounds to 100 pounds.

The insulation 10 may also be tested for handle strength and durability. One such example test is depicted in fig. 10. As depicted in fig. 10, the closure 310 may be fully closed, wherein one of the handles 210 may be hooked to an overhead crane 600, while the opposite handle 210 is hooked to a platform 650, which may be weight bearing. In one example, the platform 650 may be configured to bear a weight of 200 pounds. During the test, the crane 600 was slowly raised, which suspended the insulation 10 in a position where the bottom plane of the insulation 10 was perpendicular to the floor. In one example, the insulation 10 may be configured to withstand a weight of 200 pounds for at least 3 minutes without showing any signs of failure. In an alternative example, the insulation may be configured to withstand a weight of 100 to 300 pounds for 1 to 10 minutes without showing any signs of failure.

Fig. 11-15 illustrate another example insulation apparatus 2010. The example insulation 2010 may have a similar configuration to the above example, with like reference numbers indicating like features having like functions. However, the example insulation 2010 may also include a lower fold flap or portion 2307 to help insulate the closure 2311 of the insulation 2010. Specifically, according to other examples discussed herein, closure 2311 (which may be a zipper) may be included on lower fold flap or portion 2307 and may face forward as it is located on the front surface or front wall of insulation 2010. The forward facing closure 2311 may allow a user to otherwise access the insulation 2010, and the lower folding flaps or portions 2307 may help provide additional insulation at the closure 2311. In this example, when the lower folding flaps 2307 are in the expanded position and the closure 2311 is opened or unsealed, the contents of the insulation apparatus 2010 maintain the closure 2311 in the open position for better access to the contents of the insulation apparatus 2010. This may help the user to have easier access to the contents of the insulation 2010. As also shown in fig. 11, when the lower fold-over flap 2307 is in the expanded position, the insulation apparatus 2010 may be approximately trapezoidal in shape to provide an elongated closure at the top of the insulation apparatus 2010.

As shown in side and cross-sectional views, i.e., fig. 12 and 14A, the insulation 2010 may be approximately pentagonal when the lower fold flaps 2307 of the insulation 2010 are in the expanded position. This general shape may provide insulation 2010 that may be easily shipped because several insulation may be packed into a container. However, other shapes and configurations are contemplated, such as square shapes, rectangular shapes, triangular shapes, conical shapes, curved shapes, and truncated shapes, which may provide an expanded closure on top of insulating device 2010 and may be easily packaged.

Similar to the example above, the insulation apparatus 2010 may include an outer shell 2501, an inner liner 2500 forming a storage compartment, a receptacle, or interior chamber 2504, and an insulation layer 2502 positioned between the outer shell 2501 and the inner liner 2500. The insulation layer 2502 provides insulation to the storage compartment 2504. The closure 2311 may be configured to substantially seal an opening 2512 located on the angled forward facing surface and extending through the outer shell 2501 and the inner liner 2500 to provide access to the storage compartment 2504. Also, according to the examples discussed above, the closure 2311 may include similar features and functions. In one example, closure 2311 may be a zipper and may be substantially waterproof to prevent liquid from flowing out of the opening when insulating device 2010 is in any orientation. Also, similar to the example above, the insulation 2010 may be provided with one or more of the following structures: a handle 2210; shoulder straps 2218; a strap loop 2224 formed with stitches 2222, such as by stitching; ring 2214; and an attachment point 2213 that may have similar features and functions as in the example above.

As shown in fig. 11 and 12 and described above, the lower folding flap 2307 may include a forward facing closure 2311 and may be folded and secured to a sidewall of the insulating apparatus 2010 to further insulate the forward facing closure 2311. The lower fold flap 2307 of the fastening mechanism 2301 may include a first end hook or clip 2313a and a second end hook or clip 2313 b. In one example, each of the end clips 2313a, 2313b may include a slot 2317a, 2317b for receipt in a corresponding loop 2315a, 2315b on the side or sidewall of the thermal device 2010. To close the insulation 2010, the lower fold over flap 2307 is folded over the front or front wall of the insulation 2010, along with the forward facing closure 2311. The lower folding flap 2307 folds and hides or covers the forward facing closure 2311. The lower fold over flap 2307 is held in place by the first end clip 2313a and the second end clip 2313b and holds the fastening mechanism 2301 in a closed position. Additionally, when the lower folded portion 2307 is secured to the side wall of the insulation apparatus 2010, the lower folded portion 2307 extends at least partially in a substantially horizontal direction, which orients the handle 2318 in a position for grasping by a user in order to hold and carry the insulation apparatus 2010. As in the other handles and straps, the carrying handle 2318 may be secured to the housing by a reinforcement patch (not shown). A handle 2318 may be provided on the rear surface of the insulation 2010 opposite the closure 2311 on the forward facing surface, the handle 2318 may be grasped by a user during opening and closing of the insulation 2010, thereby making it easier for the user to open and close the closure 2311. The handle 2318 may also be used to suspend the insulation 2010 or to carry the insulation 2010, although other uses are contemplated.

Fig. 14A shows a cross-sectional side view of insulation 2010. Insulation 2010 includes liner 2500, insulation layer 2502, and outer shell 2501. As shown in fig. 14A, an insulation layer 2502 may be located between the liner 2500 and the outer shell 2501, and may be formed as a foam insulation to help maintain the internal temperature of a receptacle 2504 for storing contents for which cold or warm keeping is desired, similar to the example above. The insulation layer 2502 may also be located between the inner liner 2500 and the outer shell 2501, and may not be attached to the inner liner 2500 or the outer shell 2501 such that it floats between the inner liner 2500 and the outer shell 2501. In one example, the inner liner 2500 and outer shell 2501 can be connected at a top portion of the insulation 2010 such that the insulation layer 2502 can freely float in the pocket formed by the inner liner 2500 and outer shell 2501.

In this example, the inner layer or liner 2500 may be formed from a first liner side wall portion 2500a and a bottom liner portion 2500 b. The first liner side wall portion 2500a and the bottom liner portion 2500b can be secured together by, for example, welding to form the chamber 2504. Similar to the example above, chamber 2504 may be a "dry bag" or vessel for storing contents. In one example, after the first liner side wall portion 2500a and the bottom liner portion 2500b are secured or joined together, a tape (such as a TPU tape) may be placed over the seams of the sections of the joining chamber 2504. The tape seals the seam formed between the first liner side wall portion 2500a and the bottom liner portion 2500b to provide an additional barrier to liquid from entering the chamber 2504 or flowing out of the chamber 2504. Thus, the liner 2500 may retain liquid in the chamber 2504 of the insulating device 2010, or may prevent liquid contents from entering the chamber 2504 of the insulating device 2010. However, it is also contemplated that the liner 2504 may be formed as a one-piece, unitary structure that may be secured within the outer shell.

As shown in fig. 14A and 15, the insulating layer 2502 can be formed of a first or upper portion 2502a, a second or base portion 2502b, and a base support layer 2505. Additionally, the first portion 2502a may include a top flap or smaller rectangular shape 2502a 1. When the lower folding flap 2307 is folded over the top portion of the insulation apparatus 2010, the top flap 2502a1 of the insulation layer, along with the remainder of the first portion 2502a and the base portion 2502b, surrounds substantially the entire internal chamber 2504 in an insulated manner to provide the maximum amount of insulation to the internal chamber 2504 of the insulation apparatus 2010.

When the upper portion 2502a is flattened, the upper portion 2502a of the insulation layer 2502 generally resembles a "T" shape such that the insulation layer defines a first height H₁And a second height H₂Wherein the first height H₁Is greater than the second height H₂. In this example, a majority of the insulation layer may extend to the second height H₂The second height is less than the first height H₁. Likewise, first portion 2502a may be formed of two interconnected rectangular shapes, with the bottom of first portion 2502a forming a first larger rectangular shape 2502a2, and the upper section of first portion 2502a forming a smaller rectangular shaped top flap 2502a 1. It is also contemplated that the first larger rectangular shape 2502a2 may be formed as a separate piece from the smaller rectangular shape 2502a 1. The first rectangular shape 2502a2 may have a first rectangular width and the second rectangular shape 2502a1 may have a second rectangular perimeter, and the first rectangular shape 2502a2 is approximately as wide as the second rectangular shape 2502a1 perimeter. In one example, the smaller rectangular shape 2502a1 forms a top flap of the insulation layer of the upper portion 2502a that extends into the lower folded portion 2307.

First portion 2502a and second portion 2502b may be formed of an insulating foam material as discussed herein. In one example, second portion 2502b can be formed of a thicker foam material than first portion 2502 a. For example, the thickness of the second portion 2502b can be formed between 20mm and 50mm thick, and in one particular example, can be formed from 38mm thick foam, while the first portion 2502a can be formed between 15mm and 30mm, and in one particular example, can be formed from 25mm thick foam. In one example, the foam may be an NBR/PVC hybrid foam, a PVC-free NBR foam, or other environmentally friendly foam.

As also shown in fig. 15, the base support layer 2505 adds thermal insulation and structural integrity to the insulating device 2010 at the base 2215. Base support layer 2505 may also provide additional protection around the bottom of insulating device 2010. In one example, the base support layer 2505 may be formed of EVA foam. The base support layer 2505 may include a specific design, such as a logo or name, that may be molded or stamped directly into the material. Base support ridges 2400 that provide structural integrity and support to the thermal isolation device 2010 can also be molded or stamped directly into the base support layer 2505. In one example, the base support layer 2505 and base portion 2502b can be separated or unsecured to facilitate assembly, thereby reducing the number of assembly steps. The base portion 2502b may be formed in an oval shape to close a lower opening 2506 formed by the open shape of the upper portion 2502 a.

The bottom of the first portion 2502a retains its shape when folded into an elliptical cylindrical shape and placed between the inner liner 2500 and the outer shell 2501. Insulation layer 2502 retains its shape, which results in insulation device 2010 having a substantially elliptical cylindrical shape.

Housing 2501 may be formed from an upper side wall portion 2501a, a lower side wall portion 2501b, and a base portion 2501 c. The upper side wall portion 2501a, lower side wall portion 2501b and base portion 2501c may be secured by stitching. Other methods of attachment are also contemplated, such as the use of welding or adhesives.

Additionally, the lower folded portion 2307 may be at least partially free of foam to make it easier to close the fastening mechanism 2301. Specifically, lower folded portion 2307 may include a first section 2307a and a second section 2307 b. First section 2307a may be devoid of insulation layer 2502, while second section may contain insulation layer 2502.

Referring to fig. 14B, similar to the above example, the closure 2311 may be mounted on a backing or fabric. Where the closure is a zipper, the backing or fabric may be referred to as zipper strip 2306. Also, similar to the example above, zipper strip 2306 can be attached between inner liner 2500 and outer housing 2501, and in particular zipper strip 2306 can be secured to upper sidewall portion 2501a and first inner liner sidewall portion 2500a of the outer housing. As shown in fig. 14B, the zipper strip 2306, the upper side wall portion 2501a of the housing, and the first liner sidewall portion 2500a can form a stacked arrangement of a sandwich structure with the zipper strip 2306 between the upper sidewall portion 2501a of the housing and the first liner sidewall portion 2500 a.

Similar techniques as discussed above with respect to the examples may be used to form insulation 2010. For example, an upper sidewall portion 2501a of the housing 2501 can be formed. Also, the base 2215 can be formed separately from the base portion 2502b of the thermal insulating layer 2502, the base support layer 2505, the lower side wall portion 2501b, and the base portion 2501c of the housing 2501, in accordance with the techniques discussed herein. Base 2215 can be secured to the bottom of upper side wall portion 2501a of housing 2501 using techniques discussed herein. An upper portion 2502a of the insulating layer 2502 can be disposed within an upper side wall portion 2501a of the housing 2501. The first liner side wall portion 2500a and the bottom liner portion 2500b can then be secured to form the liner 2500 and the chamber 2504. A tape, such as a TPU tape, may be placed over the seams joining the sections of the liner 2500 and the chamber 2504. Liner 2500 may then be placed within insulation layer 2502. A closure 2311 may then be attached between the inner liner sidewall portion 2500a and the upper sidewall portion 2501 a. At this point in the process, the insulation 2010 assembly will have a cylindrical shape with an open top. To close the open top, the upper ends of liner side wall portion 2500a and upper side wall portion 2501a can then be secured together by welding or by using any of the techniques discussed herein to form insulation 2010. An adhesive 2518 may be applied to the top portion of the insulation 2010 to cover and hide the seam between the outer shell 2501 and the inner liner 2500. After forming the outer shell or once the insulation 2010 is formed, a loop patch (not shown), a handle 2210, shoulder straps 2218, webbing loops 2224, and rings 2214 may be added to the outer shell 2501 by various techniques discussed herein. It is contemplated that the inner and outer liners may be formed by welding, gluing or stitching, and combinations thereof.

In another example, a magnetic connection may be made to secure lower folded section 2307 to the body of insulation 2010. As shown in fig. 16A and 16B, the thermal isolation device 2010 may be provided with a magnetic clamp 3313 that may be received by a corresponding magnet (not shown) on the sidewall of the thermal isolation device 2010. However, it is also contemplated that the clips and clip receiving portions on the thermal isolation device 2010 may be one or more of permanent magnets, metal strips, or ferromagnetic materials. In addition, other methods of securing the lower fold over flap 2307 over the forward facing closure 2311 are also contemplated. For example, one or more of a hook and loop, a buckle, a snap, a zipper, a detent, a spring-loaded detent, a button, a cam, or a suture may be used to secure the lower fold flap 2307 to the sidewall of the insulating device 2010.

Fig. 17-22 illustrate another example insulation 4010. The example insulation 4010 may have a similar configuration to the examples above, particularly to the examples discussed above with respect to fig. 11-16B, where like reference numerals indicate like features having the same or similar functionality. In this example, the insulation 4010 does not include a fold-down flap and may include a different overall shape than the example insulation 2010. In addition, thermal barrier layer 4502 can have a different configuration and other variations as discussed below. Similar to the above example, the closure 4311 may be placed on the front or front wall of the insulating device 4010.

As shown in fig. 18 and 19, the insulation 4010 may generally form a trapezoidal shape when viewed from the front and rear, wherein the insulation is biased or tapered upwardly toward the top of the insulation 4010. The trapezoidal shape may provide some insulation, user accessibility, and packaging benefits. For example, the trapezoidal shape may provide extended ice coverage time because the trapezoidal shape may place additional foam between the outer casing 4501 and the inner liner 4500.

Additionally, the overall shape of the thermal shield 4010 can help maintain the thermal shield 4010 in an open position when the closure 4311 is in the open position and provides easy access to the contents of the thermal shield 4010 by a user. The trapezoidal shape as discussed herein also allows the closure 4311 to be formed longer relative to the insulating device 4010. Other shapes of the opening allowing for expansion at the upper portion of the thermal isolation device 4010 are also contemplated. For example, the upper portion of the insulation 4010 can be formed with a curvature that expands upward or downward to allow a larger enclosure to extend across the upper portion of the insulation 4010. As also shown in fig. 20, the thermal shield 4010 can be formed generally conical, tapered, or funnel shaped when viewed from the side, such that the sides converge to the top of the thermal shield 4010. In some examples, the sides may also be formed in a substantially parabolic shape. Thus, in contrast to the elliptical shape where the bottom of the thermal insulator 4010 has the same perimeter, the thermal insulator 4010 converges to an apex along the top of the thermal insulator 4010.

In some instances, the trapezoidal shape may also provide insulation 4010 that can be easily shipped because several insulation 4010 may be packed into a container. For example, multiple insulation 4010 can be arranged in a container in different orientations to utilize more space within the container.

In an alternative embodiment, when the closure 4311 is in an open or unsealed position, the contents of the thermal isolation device 4010 may hold the closure 4311 in an open position for easier access to the contents of the thermal isolation device 4010. In this example, the weight of the contents may force the lower half of the closure 4311 away from the upper half of the closure 4311 so that the user may better see the contents of the thermal isolation device 4010 and more easily remove or add contents to the thermal isolation device 4010.

In this example, the outer shell construction, insulation layer and liner construction may be similar to the construction of the embodiment discussed above with respect to fig. 11-16B, and details are not repeated here. The housing 4010 can further include a top portion 4316 configured to receive a closure 4311 therein. Top portion 4316 may be formed of the same material as the remaining housing 4501, which in one particular example may be nylon, specifically 840d nylon with TPU.

Similar to the examples discussed with respect to fig. 11-16B, the thermal insulation 4010 may be provided with one or more of the following structures: a handle 4210; shoulder straps 4218; a strap loop 4224 formed by stitches 4222; ring 4214; and an attachment point 4213 that may have similar features and functions as in the example above. Additionally, a rear handle 4318 may be provided on the rear surface of the insulation 4010 opposite the closure 4311, which may be used to be grasped by a user during opening and closing of the insulation 4010, thereby making it easier for the user to open and close the closure 4311. The rear handle 4318 may also be used to hang the insulation 4010 to dry the interior chamber 4504, or to carry the insulation 4010. Each of the handles 4210, shoulder straps 4218, webbing loops 4224 and attachment points 4213 may be reinforced by one or more of additional structure in the form of webbing or suitable polymeric materials. The reinforcement material may be applied to any of the examples discussed herein.

Additionally, as shown in fig. 17 and 21, an adhesive 4518 may be included that extends over the top of the thermal isolation device 4010 to secure the outer shell 4501 to the inner liner 4500. Adhesive 4518 may be folded over the top of insulation 4010 and then sewn over outer casing 4501 and liner 4500 to form a covering for the joint or seam between liner 4500 and outer casing 4501. As shown in fig. 18, the bond 4518 may be folded in triplicate to form a first folded portion 4518a, with a first third attached to a first side of the thermal shield 4010, a second third extending over the top of the thermal shield 4010, and a final third attached to a second side of the thermal shield 4010. An adhesive 4518 covers the seam between casing 4501 and liner 4500 along the top of insulation 4010. As also shown in fig. 17, a bond 4518 extends from the top of the thermal shield 4010 and forms a second folded portion 4518b (where the bond 4518 is folded in half) and a third unfolded portion 4518c that forms attachment points 4213 that receive the rings 4214 and extends to these attachment points. Each side of the insulation 4010 may include a second folded portion 4518b and a third unfolded portion 4518c, such that the insulation 4010 may include two second folded portions 4518b and two third unfolded portions 4518 c. The bond 4518 may be deployed closer to the attachment point 4213, and may also be formed to deploy from the attachment point 4213 to the top of the insulation 4010. In any of these configurations, a segment of the bond 4518 (e.g., the second folded portion 4518b) may not be attached to the thermal shield 4010 and form a strip between the folded portion 4518a and the attachment point 4213. In this example, two strips may be formed from the two second unrolling portions 4518b and may be grasped by a user to manipulate the insulation, may be used to suspend the insulation 4010 for drying, etc. Likewise, attachment points 4213 formed by bonds 4518 may be loops or slots for receiving rings 4214.

Fig. 22 and 22A show an insulation layer 4502 in greater detail, which is similar to the example insulation device 4010 discussed above, wherein like reference numerals refer to like components having the same or similar function. Thermal barrier layer 4502 can be formed from materials discussed herein, and in certain examples, can be free of PVC and/or can have non-thermoset properties such that the foam is fully resilient. Similar to the example above, upper portion 4502a of thermal insulation layer 4502 may be formed from a single sheet of material rolled into a shape defined by an opening between inner liner 4500 and outer casing 4501. As shown in fig. 22, as in the above example, a thermal barrier layer 4502 can be formed from a first or upper portion 4502a and a second or base portion 4502 b. The rear top flap 4502a1 can be formed in a smaller rectangular shape. Rear top flap 4502a1 extends higher than the front side of first portion 4502a of thermal barrier layer 4502 to accommodate forward facing closure 4311. Specifically, rear top flap 4502a1 may extend to first height H₃And first portion 4502a may extend to a second height H₄And a first height H₃May be greater than the second height H₄. Additionally, as shown in fig. 22, a majority of thermal insulation layer 4502 may extend to second height H₄. Alternatively, as shown in fig. 22A, the back half of thermal insulation layer 4502 may extend to first height H₃And the front half of thermal barrier layer 4502 may extend to second height H₄. Additionally, as shown in fig. 22A, insulation layer 4502 can extend from first height H₃Reduced to a second height H₄. Again, this provides a tapered or chamfered portion for the area of insulation layer 4502 near the top along the sides of insulation device 4010 to provide a smaller profile on each side of insulation device 4010.

In one example, the first portion 4502a can define a first region a₁While the rear top flap 4502a1 may define a smaller area than the first area a₁Second area A of₂. When installed between liner 4500 and outer casing 4501, thermal insulation layer 4502 generally follows the conical and trapezoidal shape of the contour of thermal insulation device 4010. In addition, the outer casingThe upwardly tapered profiles of 4501 and liner 4500 can help position insulation layer 4502 such that the insulation layer covers a majority of liner 4500.

Specifically, as shown in fig. 21, thermal insulation layer 4502 occupies a large portion of the space formed between inner liner 4500 and outer casing 4501. Insulation layer 4502 extends substantially to the top of insulation device 4010 in both the front and rear portions of insulation device 4010 to insulate a majority of compartment 4504. Accordingly, insulating layer 4502 substantially surrounds the entire interior chamber 4504 to provide the maximum amount of insulation to interior chamber 4504 of insulating device 2010. In one example, thermal insulation layer 4502 covers 80% or more of liner 4500 (which covers interior chamber 4504), and in particular examples, thermal insulation layer 4502 covers 85%, 90%, or 95% or more of liner 4500 (which covers interior chamber 4504).

In the examples discussed with respect to fig. 11-22, the forward-facing closures 2311, 4311 may be formed such that they extend along a majority of the forward-facing surfaces of the thermal insulation devices 2010, 4010 as discussed above, according to the examples discussed herein, the forward-facing closures 2311, 4311 may be formed as zipper closures₁And the top of the thermal shield 4010 can define a second length L₂。

In one example, L₂May be longer than the length L of the front-facing closures 2311, 4311₁3cm to 10cm in length, and in one particular example, may be 5 cm. longer than the forward facing closures 2311, 4311 by a first length L of the closures 2311, 4311₁May extend a second length L₂At least 80% and up to a second length L₂98% of closure 2311, 4311 in one particular example, the length L of the closure 2311, 4311₁May span second length L₂Is 87% extended.

Additionally, the length L of the forward facing closures 2311, 4311₁May be formed to be greater than the length L of the base of the thermal insulation apparatus 2010, 4010₃In some examples, the forward facing closures 2311, 4311 may be formed to be longer than the length L of the base of the thermal isolation device 4010₃About 1% to 25% long in one particular example, the length L of the forward facing closures 2311, 4311₁May be greater than the length L of the base₃Length 10%. for example, length L of forward facing closure₁May be formed to be greater than the length L of the base of the thermal insulation device₃3cm to 12cm long, and in one particular example, the length L of the forward facing closures 2311, 4311₁May be greater than the length L of the base₃The length is 5 cm.

In still other embodiments, the thermal shield apparatus may include a closure extending around the entire or most of the perimeter of the thermal shield apparatus and the forward facing closures 2311, 4311 as discussed above. In this particular example, once the entire top portion or a substantial portion of the top portion is removed by the closure 2311, 4311, the contents of the insulation device are readily accessible to the user.

In another example, the insulation may be formed as modular such that the top and/or bottom may be removed and multiple structures may be interconnected to form a larger or smaller insulation. For example, the insulation may be formed from different sections by removable fasteners (such as snaps, zippers, stitches, seals, hook and loop, etc.).

With respect to the examples discussed herein, a series of vents may be provided along the housing of the thermal isolation device. The vent allows any gas trapped between the liner and the outer shell to escape. Without a vent, gases trapped between the liner and the outer shell may cause the insulation to expand, which may be undesirable in some situations. In some examples, one or more joints or seams connecting portions of the housing provide a vent for the gas. An air vent may be provided in the region of the enclosure where the enclosure fabric is punctured. For example, a slight opening may be provided at any sewn location where the various components are located on the insulation. Specifically, vents may be provided in the areas where handles, Molle loops, straps, reinforcement patches, adhesives, D-rings, loop patches, and the like are attached to the housing of the insulation. For example, sutures that may be used to secure these components to the enclosure provide an opening into the enclosure that creates an exhaust between the insulation layer and the enclosure. In one particular example, the insulation may be vented through the bond 4518.

The example insulation 4010 was tested to determine ice retention performance. In this manner, the insulation characteristics of the example insulation 4010 may be determined using ice retention performance testing. In an exemplary test, the duration of the increase from 0 ° f to 50 ° f when the thermal insulation 4010 is full of ice is determined according to the following test parameters. In certain examples, the temperature of the insulation increases from 10 ° f to 32 ° f over a duration of 24 hours to 48 hours, the temperature of the insulation increases from 32 ° f to 50 ° f over a duration of 36 hours to 68 hours, and the temperature of the insulation increases from 0 ° f to 50 ° f over a duration of 70 hours to 90 hours.

The following test was used to test ice retention performance. More than 24 hours before the test, the following steps are performed:

ensure the interior and exterior of the test cooler are clean.

The test cooler is tagged with a unique identifier and the identifier and description are recorded in a test log or annotation.

The thermocouple (T) was placed in the approximate center of the test cooler (C) using adhesive tape.

The thermocouple tip should be about 1 inch above the cooler floor. (see FIG. 23 for an example of a suitable thermocouple setup.)

Conditioning the test chiller by holding it inside (ambient temperature 65-75F.) and with the lid open for at least 24 hours.

The amount of ice required for the test (to the nearest 0.1 lbs) was calculated using the following equation.

O. the amount of ice in each cooler 0.52 lb x quart capacity of the cooler

The required amount of ice x number of coolers per cooler

Prior to use, the ice is placed in a freezer for at least 24 hours (-15F. to-5F.) to condition the ice.

On the test day, the following steps are performed:

obtaining test devices

Bringing the thermal chamber temperature to 100 ℉

Balance-placing balance near freezer with test ice

Data logger-ensuring that the battery of the data logger has been charged

The test procedure was as follows:

bring the test cooler to the freezer with the test ice.

Place the test chiller on the balance and clear the balance.

Breaking the test ice with a hammer.

The test cooler was quickly filled with the required amount of ice using a balance as a reference.

Ensure that the ice is evenly distributed throughout the test cooler.

Ensure that the connector end of the thermocouple is located outside the test cooler and close and secure the cooler cover.

Repeat these steps for the remaining test coolers.

The coolers are arranged in the test area so that they both have a uniform amount of direct sunlight and air flow (one cooler does not block the other).

Connect all thermocouples to the data logger.

Check all thermocouple readings to ensure all connections are completed and the channel records are correct. (note: the initial temperature inside each test cooler should be <10 ° f).

Power-up the data logger and be configured to log temperature at intervals of less than 10 minutes.

Start recording and time logging in the test log.

Let the test continue until the internal temperature of each test cooler is ≧ 50 ℉.

Stop recording.

Disconnecting the thermocouple from the data logger.

Receive data from the data logger.

Remove the test cooler from the test area.

Empty the test cooler and let it dry.

Remove the thermocouple from the test cooler.

The thermal gain ratio of insulation 2010, 4010 can be about 0.5 to 1.5degF/hr, and in one particular example, the thermal gain ratio can be about 1.0 degF/hr.

Similar to the above example, the performance of the insulation devices 2010 and 4010 are also configured to withstand internal leaks, and tests were also conducted to see how the insulation devices 2010, 4010 maintain the performance of the contents stored in the storage compartments or receptacles 2504, 4504. In one example test, the insulation 2010, 4010 may be filled with a liquid (such as water) and then inverted for a predetermined period of time to test whether a moisture leak has occurred. In this example, insulation 2010, 4010 is filled with liquid until approximately half of the volume of receptacle 4504 is filled (e.g., 3 gallons of water), then closures 2301, 4301 are fully closed. The entire insulation 2010, 4010 is then inverted and held inverted for a period of 30 minutes. The insulation 2010, 4010 is then checked for any leaks.

The insulation 2010, 4010 can be configured to be capable of being inverted for 30 minutes without any water escaping or exiting the receptacle 2504, 4504. In an alternative example, the insulation 2010, 4010 can be configured to be capable of being inverted for 15 minutes to 120 minutes without any water escaping or exiting the receptacle 2504, 4504.

Fig. 24-32 illustrate another example insulation 3010. The example insulation 3010 may have a similar configuration to the example above, with like reference numbers indicating like features having like functions. In this example, as can be seen in fig. 24-26 and 32, the closure 3311 and opening 3512 are formed through the first, second, and third sidewalls 3507A, 3507B, 3507C and partially through the fourth sidewall 3507D of the thermal insulation device 3010. Further, the opening 3512 is configured to provide access to the interior chamber 3504, as shown in fig. 29A and 32. Similar to the above example, closure 3311 may be substantially waterproof so as to prevent liquid from flowing out of opening 3512 when insulation 3010 is in any orientation.

As shown in the cross-sectional view of fig. 29A, the example insulation 3010 generally includes a body assembly 3350 and a cover assembly 3300 that together form the three primary components of the insulation 3010: inner liner 3500, insulation layer 3502, and outer shell 3501. Inner liner 3500 may be made of a double-laminated TPU nylon fabric in one example, insulation layer 3502 may be formed of NBR/PVC foam blend or any other suitable blend or foam in one example, and outer shell 3501 may be formed of TPU nylon fabric in one example. It is also contemplated that the inner liner and outer shell 3501 may be formed from one or more of PVC, TPU coated nylon, coated fabric, and other weldable and/or waterproof fabrics.

As shown in fig. 24-26, the closure 3311 extends between the body component 3350 and the cap component 3300 to substantially water-tightly seal the body component 3350 and the cap component 3300. Additionally, as shown in fig. 29A, the cover assembly 3300 may be connected to the body assembly 3350 by a housing 3501 that forms a living hinge 3503. In one example, living hinge 3503 may be formed as part of outer shell 3501 and/or inner liner 3500, and in particular by the flexible nature of the material of outer shell 3501 and/or inner liner 3500 to provide a larger opening in insulation 3010. The living hinge 3503 may also be reinforced by an inner fabric piece 3503A, which may be formed from a lining material or other waterproof material. In this manner, access to the compartment 3504 and contents of the insulation 3010 may be gained by opening the closure 3311 and folding back or opening the cap assembly 3300.

In this example, the thermal insulation 3010 may be in the shape of a cuboid or a prism. For example, outer shell 3501, insulation layer 3502, and inner liner 3500 define a rectangular parallelepiped first side wall 3507A, second side wall 3507B, third side wall 3507C, and fourth side wall 3507D. The cover assembly 3300 also forms a top wall 3300a, while the base 3215 forms a bottom wall 3215a to enclose the cuboid. However, the contents of the insulation 3010 are accessed through an opening 3512 formed at the top of the insulation, and the opening may again extend through each of the first, second, and third sidewalls 3507A, 3507B, 3507C and may partially extend through the fourth sidewall 3507D. Other shapes are also contemplated for insulation 3010, such as, for example, cylindrical, spherical, conical, pyramidal, frustoconical, frusto-spherical, frusto-conical, and the like. The height of insulation 3010 may be in a range of 15cm to 50cm in one example, and may be 29cm in one particular example. The length of insulation 3010 may be in a range of 15cm to 50cm, and may be 32cm in one particular example. Also, the width of the insulation may be in the range of 15cm to 50cm in one example, and may be 25.5cm in one particular example. The storage capacity of the insulation 3010 may be 10 to 15 quarts, and in one particular example may be 12.7 quarts. However, it is contemplated that insulation 3010 may include any height, length, width, and volumetric size without departing from the scope of this disclosure.

Similar to the above examples, the insulation 3010 may include one or more handles 3210 and 3212, a loop 3214, and a webbing loop 3224 for attaching various items, such as straps (shoulder straps), safety buckles, dry bags, keys, storage boxes, and the like. The ring 3214 may be a D-ring and a shoulder strap (not shown) may be connected to the D-ring to facilitate carrying the insulation. Likewise, loops 3214 may be attached to insulation 3010 at attachment points 3213, which may form loops or straps 3315a, which also form slots for receiving loops 3214. The insulation may also include side, front and/or rear handles, pockets, tethers and D-rings anywhere on the outer surface of the enclosure. The pocket may be sized to receive a key, phone, purse, etc., and may be formed to be waterproof. The pouch may also include a waterproof zipper to prevent the contents therein from becoming wet.

Likewise, similar to the above example, the housing 3501 may also include a plurality of reinforced areas or patches 3320 configured to help structurally support optional handles, straps, and webbing loops (e.g., 3210, 3212, 3213, 3214, and 3224). Handles or straps (e.g., 3210, 3212, 3213, 3214, and 3224) and other attachments may be sewn to the patch using stitches 3222. In some examples, these stitches 3222 do not extend through the housing 3501 into the insulation layer 3502. An optional handle or strap may be sewn to the patch 3320 and the patch 3320 may be RF welded to the housing 3501. Additionally, in other examples, patch 3320 may be sewn or adhered to housing 3501. The holes created by the stitching operation may provide exhaust to the interior defined by outer shell 3501 and inner liner 3500 of insulation 3010. In addition, other techniques for securing the handle or strap to the thermal insulation 3010 are contemplated.

The internal components of the insulation 3010, body assembly 3350, and cover assembly 3300 can be seen in the cross-sectional view of FIG. 29A. Additionally, fig. 29B illustrates an enlarged cross-sectional view of the closure assembly 3300.

The closure assembly 3300 includes an upper liner portion 3500A, an upper insulation layer portion 3502A, and an upper shell portion 3501A. Upper insulation layer portion 3502A may be formed from a single foam layer that corresponds to the overall shape of the cap assembly 3300. In one example, the foam may be an insulating foam as discussed herein, which may be the same foam as used in the body assembly 3350, and may not be attached to the upper liner portion 3500A and the upper shell portion 3501A but instead float therebetween. As shown in fig. 29B, upper liner portion 3500A may be formed from a sheet of material 3500A1 and a strip of material 3500A2 attached to an adhesive 3518. In other embodiments, the sheet of material 3500a1 may be directly attached to adhesive 3518, thereby eliminating the need for strips of material 3500a 2. The strips of material 3500a2 may be overlapped and welded to the sheets of material 3500a 1. Seam tape 3509 may be placed over the connection between the sheet of material 3500A1 and the strip of material 3500A 2. For example, it is also contemplated that upper liner portion 3500A may be formed as a unitary structure by injection molding.

The upper liner portion 3500A may be attached to the upper shell portion 3501A by joining the upper liner material strip 3500A2 to the upper shell material strip 3501A3 at an RF weld joint 3522. However, it is contemplated that other types of securing methods may be used, such as other forms of welding, stitching, adhesives, rivets, etc. Additionally, as will be discussed in further detail, a strip or tape-shaped adhesive material 3518 may be sewn over the ends of the upper liner material strips 3500a2 and the upper casing material strip 3501 A3. It is also contemplated that the bonding material 3518 may be coupled over the ends of the upper strips of liner material 3500a2 and upper strips of enclosure material 3501A3 by a plurality of rivets or by the use of one or more adhesives.

As shown in fig. 29A and 29B, the upper housing portion 3501A of the closure assembly 3300 may include two separate layers 3501A1 and 3501A2 and a strip 3501A3 of upper housing material extending perpendicular to the two separate layers 3501A1 and 3501A 2. The upper housing material strip 3501a3 may be integral and attached to the first housing section 3501B1, as discussed in further detail below. For example, the upper strip of housing material 3501a3 and the first housing section 3501B1 may be formed from or cut from the same material. However, it is also contemplated that the strip of housing material 3501a3 and the first housing section 3501B1 are formed from separate structures or different materials. In one example, top layer 3501a1 can be formed from a TPU coated nylon laminate, while bottom layer 3501a2 can be formed from a compression molded EVA material. For example, the upper housing portion 3501A may also be formed from a unitary piece of material in an injection molding process.

As shown in fig. 29A and 29B, the bonding material 3518 can secure both the cover component 3300 together and the cover component 3300 to the body component 3350. In some examples, the bonding material 3518 may be formed from a strip, tape, or ribbon, and may be made of nylon. It is contemplated that the bonding material 3518 may be formed from additional or alternative polymers without departing from the scope of the present disclosure. Specifically, the first housing section 3501B1 may be secured together with the upper liner 3500A, the individual layers 3501A1 and 3501A2, and the upper housing material strip 3501A3 of the upper housing portion 3501A by stitching the adhesive material 3518 around the perimeter of the lid assembly 3300. Thus, the stitching extends through the bonding material 3518, the lower housing portion 3501B, the upper liner portion 3500A, the top layer 3501a1, the bottom layer 3501a2, and the strip of material 3500A2 to form a seam 3517.

Weld joints 3522 can secure both cover assembly 3300 together and cover assembly 3300 to body assembly 3350. As described above, the weld joint 3522 (which may be an RF weld joint) also connects the upper liner portion 3500A and the upper shell portion 3501A by joining the upper liner material strip 3500A2 to the upper shell material strip 3501A3 to secure the lid assembly 3300 together. However, it is also contemplated that joint 3522 may be formed by stitching or by an adhesive. Likewise, once the cap assembly 3300 and the body assembly 3350 are secured together, a living hinge 3503 is formed between the cap assembly 3300 and the body assembly 3350.

The cover assembly 3300 and the body assembly 3350 are also connected by a closure, which in one example may be a zipper, as discussed below. Specifically, the fastener strips 3306 may be attached between the upper strip of housing material 3501a3 and the first housing section 3501B1 of the lower housing portion 3501B by stitching, welding, adhesives, or the like. In this manner, the upper portion 3306a and lower portion 3306b of the fastener strips 3306 secure the cover assembly 3300 and body assembly 3350 together.

Referring again to fig. 29A, the body assembly 3350 includes a lower liner portion 3500B, a lower insulation layer portion 3502B, and a lower housing portion 3501B. Lower liner portion 3500B may be formed from a top strip 3500B1, a middle portion 3500B2, and a bottom portion 3500B 3. Top strip 3500B1, middle portion 3500B2, and bottom portion 3500B3 may be welded or sewn together at seam 3508. The seam 3508 may be covered with a seam tape 3509, which may be formed of a waterproof or water-resistant material such as PU (polyurethane). However, the seam tape 3509 may be formed of a breathable material that is impermeable to water, but allows gases to escape from the interior compartment 3504.

In an alternative example, lower liner portion 3500B may be formed from a single unitary piece by, for example, injection molding. Fig. 31 shows an example liner portion 7500B formed by an injection molding process. In this example, lower liner portion 7500B may be formed from one or more of polyurethane, PVC, TPU, or other weldable materials. After the lower insulation layer is placed within the outer shell, the lower liner portion 7500B may be welded into place on the outer shell.

Referring again to fig. 29A and 30, the lower insulation layer portion 3502B may include a first sheet 3502B1 of insulation material and a second sheet 3502B2 of insulation material. Similar to the above example, the first sheet of insulation material 3502B1 and the second sheet of insulation material 3502B2 may be free-floating insulation layers that are not attached to the lower liner portion 3500B or the lower shell portion 3501B. However, it is also contemplated that the first sheet of insulation material 3502B1 and the second sheet of insulation material 3502B2 may be attached to the lower liner portion 3500B or the lower shell portion 3501B. Further, it is also contemplated that lower insulation layer portion 3502B is formed of a single unitary piece.

The lower housing portion 3501B may be formed of several sections. In this example, the lower housing portion 3501B may include a first housing section 3501B1, a lower outer wall section 3501B2, a first base layer 3501B3, and a second base layer 3501B 4. Similar to the cover assembly, the first chassis layer 3501B3 may be formed from a TPU coated nylon laminate, while the second chassis layer 3501B4 may be formed from a compression molded EVA material. Each of the lower outer wall section 3501B2, the first seat layer 3501B3, and the second seat layer 3501B4 may be joined together by stitching, welding, or adhesives. Also, similar to the above example, base support ridges 3400 may be formed into the first base layer 3501B3 and the second base layer 3501B4 to provide structural integrity and support to the thermal insulation device 3010 when the thermal insulation device 3010 is placed onto a surface. In alternative examples, the lower housing portion 3501B may be formed as a single piece and, in some examples, may be formed by an injection molding process.

Similar to the above example, the closure 3311 may be a zipper and may be substantially waterproof. Further, the zipper may include a pull tab or handle 3302, which in this example may be formed of a hard plastic. It is also contemplated that the pull tab 3302 may be formed of a metal or alloy, a flexible polymer, a cloth, a wire or cord, or the like. Forming the pull tab 3302 from a cloth, wire, or cord can prevent the connection between the pull tab 3302 and the zipper from fraying. Specifically, the pull tab 3302 may be rotated or twisted by the user as the zipper is closed around the circumference of the housing 3501. The cloth, wire or string may withstand the twisting action of the user. Other pull tabs are also contemplated. For example, the pull tab may be provided with a bearing attachment that allows the pull tab to rotate 360 ° in all directions.

A series of vents may be provided along the housing 3501 of the thermal insulation device 3010. The vents allow any gas trapped between the inner liner 3500 and the outer shell 3501 to escape. Without a vent, the gas trapped between the inner liner 3500 and the outer shell 3501 would cause the thermal insulation 3010 to expand, which may be undesirable in some circumstances. In some examples, the joint or seam connecting the liner and the outer shell provides a vent to the gas.

Venting may be provided in the cap assembly 3300. Specifically, in closure assembly 3300, seam 3517 may provide a series of small openings in closure assembly 3300 where stitching over adhesive material 3518 occurs. These openings serve as vents for gas to escape the interior volume of the cap assembly 3300.

Further, venting may be provided in body assembly 3350. In the body assembly, an air vent may be provided in the area of the lower housing portion 3501B where the fabric is pierced. For example, as shown in fig. 26, a slight opening may be provided at the frame and cross-shaped stitch line 3521, with a back handle 3210 attached to the insulation 3010. Vents may also be provided at the areas or locations where the handle 3212, handle 3210, Molle loop 3224, and D-ring 3214 are attached to the housing 3501 of the insulation 3010. For example, sutures securing the handle, webbing, or Molle loop 3224 and D-ring 3214 to the housing provide an opening into the housing 3501 to create a vent for the storage compartment or interior chamber 3504 of the insulation 3010. Fig. 33 shows an example schematic in which a suture 3519 extends through the housing 3501, the handle 3212, the reinforcement area or patch 3320.

To form the thermal insulation device 3010, the body assembly 3350 may be formed, and then the cap assembly 3300 may be formed by joining the cap assembly 3300 to the body assembly 3350. To form the body assembly 3350 of the thermal insulation device 3010, the lower shell portion 3501B and the lower liner portion 3500B may be formed separately. Once lower housing portion 3501B is formed, insulation layer 3502 may be placed within lower housing portion 3501B. Lower liner portion 3500B may be attached to lower housing portion 3501B to secure insulation layer 3502 within lower housing portion 3501B and lower liner portion 3500B. However, insulation layer 3502 may be free to float between lower housing portion 3501B and lower liner portion 3500B. By welding the upper liner portion 3500A to the upper and lower housing portions 3501A and 3501B at weld joint 3522, the cover assembly 3300 may be secured together, and the cover assembly 3300 may be secured to the body assembly 3350. Finally, the cover assembly 3300 may be further attached to the lower housing portion 3501B by sewing the top portion of the lower housing portion 3501B together with the top layer 3501a1, the bottom layer 3501a2, the upper liner portion 3500A, the strip of material 3501A3, and the adhesive material 3518.

Specifically, the lower housing portion 3501B may be formed by attaching together each of the first housing section 3501B1, the lower housing section 3501B2, the first seat layer 3501B3, and the second seat layer 3501B 4. Next, each of the first sheet of insulation material 3502B1 and the second sheet of insulation material 3502B2 may be placed within the lower housing portion 3501B. Lower liner portion 3500B may then be formed by welding together each of top strip 3500B1, middle portion 3500B2, and bottom portion 3500B3, followed by adding seam tape 3509 over each weld. Alternatively, as discussed above, the lower liner portion 3500B may be formed by injection molding a material. Once lower liner portion 3500B is formed, liner portion 3500B may be placed within lower insulation layer portion 3502B and liner portion 3500B may be welded to lower shell portion 3501B at seam 3511 all the way along the inner periphery of body assembly 3350 of insulation device 3010. In this example, the seam 3511 can be formed by welding or stitching.

Fig. 9 illustrates an exemplary welding technique that may be used to weld the lower liner portion 3500B to the lower housing portion 3501B. Once lower liner portion 3500B is placed within lower insulation layer portion 3502B, lower liner portion 3500B may be joined on its sides to lower housing portion 3501B using a three-piece tool, which may include a top U-shaped portion 3514A, a plate portion 3516, and a bottom U-shaped portion 3514B. The curvature of the top U-shaped portion 3514A, the plate portion 3516, and the bottom U-shaped portion 3514B may correspond to the shape of the perimeter of the body assembly 3350 of the thermal insulation device 3010.

To form seam 3511 as a weld, lower liner portion 3500B is brought into contact with lower housing portion 3501B, and plate portion 3516 is placed within lower liner portion 3500B and top U-shaped portion 3514A, and bottom U-shaped portion 3514B may be brought into contact with lower housing portion 3501B. The top U-shaped portion 3514A and the bottom U-shaped portion 3514B may be connected to two leads such that current may pass through the top U-shaped portion 3514A, the lower housing portion 3501B, and the lower liner portion 3500B. Current may then first be applied to the top U-shaped portion 3514A to form a weld along the top U-shaped portion 3514A including a curved portion and a straight portion. After the top section is soldered, the polarity of the leads can be reversed and then the bottom section soldered along bottom U-shaped portion 3514B.

After welding the bottom section through the bottom U-shaped portion, the remaining two sides can then be welded by using the plate portion 3516 and a pair of straight side bars or another clamping mechanism or vise. Similar to the curved portion of the body assembly 3350, current may be applied to a pair of straight side bars by wires. Likewise, the sides may be welded separately by applying current in a first direction to weld the first side, and then by switching the polarity of the wire and running the current in the opposite direction to weld the second side. In one example, each of these sections may be welded for about 10 seconds. Once the weld is completed around the entire perimeter of the body member 3350, the body member 3350 may be assembled to the cap member 3300.

In one example, the enclosure 3311 may be substantially waterproof so as to prevent liquid from flowing out of the opening when the insulation is dropped from a height of six feet. In this test, the insulation may be completely filled with water and then dropped from a height of six feet to contact the concrete surface with each of the faces (in this case six) of the insulation 3010.

Example insulation 3010 was tested to determine ice retention performance. In this manner, the thermal insulation characteristics of the example thermal insulation device 3010 may be determined using an ice retention performance test. In an exemplary test, the duration of the increase from 0 ° f to 50 ° f when the thermal insulation 3010 is full of ice is determined according to the following test parameters. In certain examples, the temperature of the insulation increases from 0 ° f to 10 ° f over a duration of 0.5 hours to 1.5 hours, the temperature of the insulation increases from 10 ° f to 50 ° f over a duration of 22 hours to 28 hours, and the temperature of the insulation increases from 0 ° f to 50 ° f over a duration of 24 hours to 30 hours.

The following test was used to test ice retention performance. More than 24 hours before the test, the following steps are performed:

ensuring that the interior and exterior of the test cooler are clean.

The test cooler is tagged with a unique identifier and the identifier and description are recorded in a test log or annotation.

The thermocouple (T) was placed at about the center of the test cooler (C) using an adhesive tape.

The thermocouple tip should be about 1 inch above the cooler floor. (see FIG. 11 for an example of a suitable thermocouple setup.)

The state of the test chiller was adjusted by holding the test chiller inside (ambient temperature 65-75 ° f) and the lid open for at least 24 hours.

The amount of ice required for the test (to the nearest 0.1 pounds) was calculated using the following formula.

The amount of ice in each cooler was 0.52 pounds x quart capacity of the cooler

The required amount of ice x number of coolers per cooler

Prior to use, the ice is conditioned by placing it in a freezer for at least 24 hours (-15F. to-5F.).

On the test day, the following steps are performed:

obtaining a test device

The temperature of the thermal chamber is up to 100 ℉

Balance-placing balance near freezer with test ice

Data logger-ensuring that the battery of the data logger has been charged

The test procedure was as follows:

the test cooler was brought to the freezer with the test ice.

Place the test cooler on the balance and clear the balance.

The test ice was broken with a hammer.

The test cooler was quickly filled with the required amount of ice using a balance as a reference.

Ensuring that the ice is evenly distributed throughout the test cooler.

The connector end of the thermocouple was secured to the exterior of the test cooler and the cooler cap was closed and secured.

These steps are repeated for the remaining test coolers.

The coolers were arranged in the test area so that they all had a uniform amount of direct sunlight and air flow (one cooler did not block the other).

All thermocouples were connected to a data logger.

All thermocouple readings are checked to ensure that all connections have been completed and the channel records are correct. (note: the initial temperature inside each test cooler should be <10 ° f).

The data logger is powered on and configured to log temperatures at intervals of less than 10 minutes.

Begin recording and time is logged in the test log.

The test was allowed to continue until the internal temperature of each test cooler was ≧ 50 ℃ F.

The recording is stopped.

The thermocouple was disconnected from the data logger.

Data is received from a data logger.

The test cooler is removed from the test area.

The test cooler was emptied and allowed to dry.

The thermocouple was removed from the test cooler.

Two samples were tested according to the procedure described above. The test results are reflected below.

Fig. 35A-36B illustrate various views of another example thermal isolation device 5010. The example thermal isolation device 5010 is similar to the examples discussed above with respect to fig. 24-30. Like reference numerals refer to the same or similar elements of similar function throughout the several views. Therefore, these elements will not be described in detail. However, in this example, the example thermal shield 5010 can be formed in smaller sizes, can include a top grip 5216, and can include optional reinforcing tabs or tiles. However, it is contemplated that the example insulation discussed herein may include similar top handles and reinforcing panels or panels.

Fig. 36A and 36B illustrate partial views of the example closure assembly 5300. Fig. 35A illustrates a partial cross-sectional view of the example closure assembly 5300. The example closure assembly 5300 is similar to the above example, however a reinforcing sheet or panel 5217 may additionally be included in the closure assembly 5300. Fig. 36B illustrates a partial top view of an example closure assembly to show the reinforcing tabs 5217. The reinforcing tabs or tiles 5217 are configured to help prevent the handle 5216 and closure assembly 5300 from bending. The reinforcement sheet or tile 5217 can be a relatively rigid piece of material as compared to the outer liner 5501, the insulating layer 5502 and the inner layer 5500. In one particular example, the reinforcing sheets or tiles 5217 can be formed from a suitable polymer or plastic, such as polyethylene. However, any flexible reinforcing material may be used, and other examples may include thermoformed PE, TPU injection molded custom parts.

In some examples, the reinforcing sheets or tiles 5217 can be flat, corrugated, or can have a honeycomb-like configuration. However, the tiles 5217 can include other patterns to help prevent the handle 5216 from bending. In some examples, the reinforcing sheet or tile may be 1mm to 3mm thick. The reinforcing sheet may include a covering, which in some instances may be configured to prevent water from penetrating into the covering. In other examples, additional fabric may be included to enhance the grip.

A reinforced area or patch 5320 may be included on the closure assembly 5300 for supporting the handle 5216. In some instances, the patch 5320 can be welded to the cover assembly 5300. However, patch 5320 may also be omitted entirely. Handle 5216 can be sewn to closure assembly 5300 and reinforcement panel 5217 by stitches 5219. A handle 5216 can also extend through the cover assembly and be oriented to connect to the reinforcement tile 5217. Additionally, instead of using sutures, the handle 5216 can be connected to the reinforcement pieces or tiles 5217 by one or more welds, bolts or other threaded connectors, bayonets, sockets, or the like. Other methods of attachment may include providing one or more slots for layers 5501a1 or 5501a2 and providing reinforcing sheet or tile 5217 with one or more corresponding protrusions that may be located within the one or more slots, which allows for a more advanced attachment of sheet or tile 5217 to the cover assembly 5300 of the thermal shield 5010. Likewise, a wire frame or wire may be placed within the handle 5216 and extend through the handle 5216. A wire frame or wire may be threaded through the piece or tile 5217 to secure the handle to the closure assembly 5300. It is also contemplated that all or part of the closure assembly and/or handle may be injection molded to provide a more rigid structure to prevent the handle from bending.

The connection between the handle 5216 and the reinforcement tile 5217 also helps prevent separation problems between the separate layers 5501a1 and 5501a2, which may be TPU coated nylon laminate and compression molded EVA material, respectively. In this example, the connection between the handle and the reinforcing panel may allow water to enter the cover. At the same time, however, the connection may allow any liquid therein to escape by evaporation through the opening formed by the connection. However, it is also contemplated that the connection between the handle and the reinforcement tile may also be waterproof or water resistant to limit the amount of moisture that enters the closure assembly.

The handle 5216 may also be formed of 1000D nylon or other suitable polymer, and may comprise 50mm webbing. In addition, the handle 5216 can include a pad on the grip portion of the handle. In one example, the cushion may be a suitable foam, such as 5mm polyethylene sponge foam. It is contemplated that the seal between the lid assembly 5300 and the body assembly 5350 can be configured to withstand the impact load of the handle when the thermal insulation 5010 is sealed and filled with contents. However, it is also contemplated that side bridges connecting the cover assembly 5300 to the body assembly 5350 may be used to transport weights within the thermal isolation device 5010.

Fig. 37 depicts an isometric view of a front portion of an insulation device 6010, according to one or more aspects described herein. Additionally, fig. 38 depicts an isometric view of a back portion of the same insulation 6010. As depicted in fig. 38, the insulation 6010 includes a back support panel 6602 and shoulder straps 6604A and 6604B that allow the insulation 6010 to be carried as a backpack. The insulation 6010 may have a similar construction to the examples described earlier in this disclosure, where like reference numerals indicate similar features with similar functionality. In one example, features represented by the same last three digits and optionally the same letter or alphanumeric suffix may be considered to include similar features and materials of construction and/or methods. It is contemplated that the structures of the insulation device 6010 may be coupled to each other by any method and/or fastener elements, such as those previously described throughout this disclosure, and include, inter alia, adhesives, sutures, laser welds, and/or rivets.

Fig. 39 depicts a front elevation view of an insulation apparatus 6010, according to one or more aspects described herein. It is contemplated that the insulation 6010 may include any size of height, width, and depth without departing from the scope of the present disclosure. Further, it is contemplated that the various components or subcomponents of the insulation apparatus 6010 may have any size without departing from the scope of this disclosure. Fig. 39 schematically depicts a width 6802 and a height 6804 of an insulation 6010. Fig. 40 schematically depicts a depth 6806 of the thermal insulation apparatus 6010. In one particular example, the measured value of width 6802 can be about 28 cm. In another example, the width 6802 can be in a range between about 24 and 32 cm. Further, the measured value of height 6804 may be about 48 cm. In another example, the height 6804 can be in a range between about 44 and 52 cm. Additionally, the measured value of the depth 6806 may be about 22 cm. In another example, the depth 6806 can be in a range between about 16 and 28 cm. However, it is contemplated that the insulation 6010 may have any size. In one example, the insulation 6010 may have a substantially cubic geometry. Additionally or alternatively, the geometry of the insulation 6010 may be with one or more rounded or radiused edges. However, it is contemplated that the insulation 6010 may have any of a variety of geometries, such as a substantially cylindrical geometry, without departing from the scope of the present disclosure.

As depicted in fig. 39, the insulation 6010 includes a plurality of fabric loops 6224 similar to loops 224 described previously. Specifically, as depicted in fig. 39, two rows each have six girdle loops 6224, each of which is coupled to the first sidewall 6507A. However, it is contemplated that any number of the girdle 6224 can be used and that a single row or three or more rows can be formed without departing from the scope of the present disclosure.

Fig. 40A depicts a side elevation view of a first or right side of an insulation device 6010, according to one or more aspects described herein. In one example, the insulation 6010 includes an attachment panel 6606. Attachment panel 6606 may comprise a surface of hook and loop fasteners configured to detachably couple to an external element (the external element is not depicted, but it may comprise one or more storage brackets, straps, pockets, pouches, or the like, including, inter alia, hook and loop attachment elements). It is contemplated that attachment panel 6606 may include one or both of hook and loop attachment elements of a hook and loop fastener structure. Additionally or alternatively, attachment panel 6606 may include and/or encapsulate one or more metal and/or magnetic elements configured to be removably coupled to one or more external magnetic elements (not depicted).

Fig. 40B depicts an alternative embodiment of the right side of an insulation 6010. As such, the insulation 6010 may include a series of attachment loops 6224 in place of the attachment panels 6606. Additionally, the insulation 6010 may include a waist band 6810, which will be described in further detail with respect to FIG. 44. It is contemplated that the waist band 6810 can be used in combination with any of the embodiments of the insulation devices described throughout this disclosure, including the embodiment shown in fig. 40A.

Fig. 41 depicts a side elevation view of a second or left side of an insulation device 6010, according to one or more aspects described herein. As depicted in fig. 41, the insulation 6010 includes a plurality of fabric loops 6224 similar to loops 224 described previously. Although four loops 6224 are depicted in fig. 41, it is contemplated that any number of loops 6224 may be used without departing from the scope of the present disclosure. Additionally, it is contemplated that the second side of the insulation 6010 depicted in fig. 41 may include an attachment panel similar to attachment panel 6606. Additionally or alternatively, it is contemplated that the first side of the thermal insulation device 6010 depicted in fig. 40 may include an attachment loop similar to the loop 6224 depicted in fig. 41.

Fig. 42 depicts a front view of a back side of an insulation device 6010, according to one or more aspects described herein. In one example, the back support panel 6602 is coupled to the depicted reinforced patch 6320 and the fourth sidewall 6507D of the insulation device 6010. Shoulder straps 6604A and 6604B may include padded upper strap portions 6702A and 6702B, which may be constructed using similar materials and processes as straps 218. In one example, the padded upper strap portions 6702A and 6702B may comprise a multi-layer material including a foam core surrounded by a wear-resistant polymer outer shell. As such, the foam core may include one or more of ethylene vinyl acetate polymer, low density polyethylene, nitrile rubber, neoprene foam, polyimide foam, polypropylene foam, polyurethane foam, polyvinyl chloride foam, silicone foam, and microcellular foam, or combinations thereof. Additionally, the padded upper strap portions 6702A and 6702B may include an outer webbing sewn to the padded upper strap portions 6702A and 6702B to form a plurality of loops 6716. A portion of the loop 6716 is marked on each of the padded upper strap portions 6702A and 6702B in fig. 42.

It is contemplated that padded upper strap portions 6702A and 6702B may include any number of loops 6716, which may have any physical dimensions. These loops may be similar to loops 224 and may be constructed from nylon webbing. Additionally or alternatively, the loop 6716 can be constructed of other materials such as polypropylene, neoprene, polyester, Dyneema fibers, Kevlar fibers, cotton fabric, leather, plastic, rubber, or rope. It is contemplated that the loop 6716 is configured for attaching an item (e.g., a safety buckle, a dry bag, etc.) to the insulation device 6010. Additionally or alternatively, the loops 6716 are configured to limit the extent to which the upper strap portions 6702A and 6702B of the strap pad can extend. As such, padded upper strap portions 6702A and 6702B may be constructed of a material configured to deform and expand to provide cushioning when insulating device 6010 is worn against the back of a user. When the user is not loading or carrying the insulation 6010 on his or her back, the padded upper strap portions 6702A and 6702B may be in a collapsed position, and the loop 6716 may have an amount of slack looped outward from the padded upper strap portions 6702A and 6702B. The weight of the insulation 6010 may intermittently or continuously cause the padded upper strap portions 6702A and 6702B to expand when worn on the back of the user, and the loop 6716 may be repositioned to tighten and abut the outer surfaces of the padded upper strap portions 6702A and 6702B. In this manner, the loop 6716 may be configured to limit the extent to which the padded upper strap portions 6702A and 6702B may extend, thereby preventing over-extension and damage to the padded upper strap portions 6702A and 6702B while also providing a shock-absorbing function.

In one example, padded upper strap portions 6702A and 6702B may be coupled to a top portion of back support panel 6602 at proximal ends 6704A and 6704B. It is contemplated that padded upper strap portions 6702A and 6702B may be coupled to back support panel 6602 at proximal ends 6704A and 6704B by stitching, gluing, one or more fastener elements, or the like. Shoulder straps 6604A and 6604B may additionally include lower adjustment straps 6706A and 6706B. Lower adjustment straps 6706A and 6706B may be coupled to a bottom portion of back support panel 6602 at proximal ends 6708A and 6708B. The lower adjustment straps 6706A and 6706B may be constructed of a material similar to the loop 6716 and webbing 212. As such, in one example, the lower adjustment straps 6706A and 6706B may be formed from nylon webbing.

The distal ends 6710A and 6710B of the padded upper strap portions 6702A and 6702B may be adjustably coupled to the distal ends 6712A and 6712B of the lower adjustment straps 6706A and 6706B by adjustment buckles 6714A and 6714B. In one example, the tabs 6714A and 6714B may be comprised of one or more of a polymer, a metal, an alloy, a ceramic, or a fiber reinforced material, and the like. Additionally, the distal ends 6712A and 6712B of the lower adjustment straps 6706A and 6706B may include sewn loops that provide finger loops to allow the lower adjustment straps 6706A and 6706B to be grasped and pulled by the adjustment buckles 6714A and 6714B and increase the thickness of the lower adjustment straps 6706A and 6706B such that the likelihood of the adjustment straps 6706A and 6706B accidentally sliding through and out of the adjustment buckles 6714A and 6714B is reduced.

The thermal shield apparatus 6010 may additionally include lower attachment loops 6718A and 6718B. Lower attachment loops 6718A and 6718B may be sewn into the sides of back support panel 6602 and may be constructed of a material similar to lower adjustment straps 6706A and 6706B. It is contemplated that the lower attachment loops 6718A and 6718B may be constructed of nylon webbing material. However, additional or alternative materials may be used without departing from the scope of the present disclosure. In one example, the lower attachment loops 6718A and 6718B may be used as anchor points for attaching waist straps (not pictured) to the insulation device 6010.

In one embodiment, the thermal insulation apparatus 6010 may include a loop handle 6720, also referred to as a tow handle 6720. A loop handle 6720 may be sewn into the insulation 6010 at the top portion of the back support panel 6602, and may be constructed of nylon webbing, similar to the lower attachment loops 6718A and 6718B. However, it is contemplated that the loop handle 6720 may be constructed of additional or alternative polymers, metals, alloys, or ceramic materials without departing from the scope of this disclosure. In one example, the loop handle 6720 can additionally comprise a padding material encapsulated within a nylon webbing. The padding material may comprise foam, or one or more layers of nylon webbing. In another embodiment, a loop handle 6720 may be sewn into the back portion or fourth sidewall 6507D of the insulation device 6010 above the back support panel 6602.

Fig. 43 schematically depicts a cross-sectional view of an insulation apparatus 6010, according to one or more aspects described herein. In one example, as schematically depicted in fig. 35F, the thermal insulation device 6010 may include elements similar to the thermal insulation device 5010. In addition, the insulation 6010 includes a back support panel 6602. In one example, the back support panel 6602 includes an outer layer 6608 and an inner layer 6610 that are joined to one another by one or more fasteners, including stitching, and/or by an adhesive 6518 similar to the adhesive 518, as previously described. In one example, back support panel 6602 may be coupled to shell segment 6501. Further, outer shell section 6501 may have two or more layers 6501B1 at a back portion or fourth side wall 6507D where back support panel 6602 is coupled to insulation 6010. In one embodiment, the inner layer 6610 of the back support panel 6602 may comprise a compression molded ethylene vinyl acetate polymer (EVA). In another example, inner layer 6610 may additionally or alternatively comprise another polymer foam material, such as, inter alia, low density polyethylene, nitrile rubber, neoprene foam, polyimide foam, polypropylene foam, polyurethane foam, polyvinyl chloride foam, silicone foam, and microcellular foam, or combinations thereof. In one embodiment, outer layer 6608 may comprise a nylon material and a polymeric leather. However, it is contemplated that outer layer 6608 may include additional or alternative materials. In one embodiment, the material and thickness of back support panel 6602 may be configured to provide resistance to deformation/increased stiffness when insulating apparatus 6010 is worn as a backpack and the position of back support panel 6602 is proximate to the back of the user; when not carried on the body as a backpack, provides increased rigidity to maintain the insulation 6010 in an upright position (not depicted). It is contemplated that any material thickness and material type in addition to or in place of those previously described may be used in the construction of back support panel 6602, including polymers, metals, alloys, fiber reinforced materials, or combinations thereof.

Insulation 6010 includes an interior chamber 6504 similar to interior chambers 504, 2504, 3504, and 4504, and is configured to store one or more items and reduce the rate of heat transfer to and from them. It is contemplated that the volume of the interior chamber 6504 may have any value without departing from the scope of the present disclosure.

It is contemplated that insulation layers 6502A, 6502B2 may comprise any of the insulation materials previously described throughout this disclosure. Additionally or alternatively, the insulation layer depicted in fig. 43 may include one or more vacuum insulation panels. These vacuum insulation panels are further described in PCT/US2016/063658 filed on days 11 and 23 of 2016, the contents of which are incorporated herein by reference.

In another example, the insulation 6010 may include additional reinforcing structures. In one example, these additional reinforcing structures may include one or more of an inner frame, an outer frame, or a portion of an inner frame comprised of one or more panels, tubes, and/or beams and of one or more of metal, alloy, ceramic, or fiber reinforced material, or a combination thereof. In another embodiment, the interior chamber 6504 of the insulating device 6010 may include one or more storage compartments, pockets, partitions, or other structures without departing from the scope of the present disclosure.

Fig. 44 depicts another isometric view of an insulation unit 6010. As shown, the waist strap 6810 is removably attached to the lower attachment loops 6718A and 6718B. In one example, the waist strap 6810 includes a first strap portion 6812 that is removably coupled to a second strap portion 6814 by a buckle 6816. It is contemplated that the first band portion 6812 and the second band portion 6814 can be constructed of nylon webbing, similar to the lower adjustment bands 6706A and 6706B. However, additional or alternative polymers, metals, alloys, or ceramic materials, or combinations thereof, may be used in the first band portion 6812 and the second band portion 6814 without departing from the scope of the present disclosure. It is further contemplated that the buckle 6816 can include any detachable coupling embodiment without departing from the scope of the present disclosure.

The waist band 6810 may be removably attached to the lower attachment loops 6718A and 6718B by two loose- loop fasteners 6818A and 6818B. In one example, the clearance ring fasteners 6818A and 6818B may be constructed of aluminum and may include elongated loop elements having gaps configured to allow the lower attachment loops 6718A and 6718B to be inserted therethrough. In other embodiments, the clearance ring fasteners 6818A and 6818B may be constructed of another metal, alloy, polymer, fiber-reinforced material, or ceramic, or a combination thereof.

Fig. 44 further depicts an alternative embodiment of shoulder straps 6820A and 6820B. Shoulder straps 6820A and 6820B may be similar to shoulder straps 6702A and 6702B and include one or more layers of padding and/or outer webbing material for providing structural load-bearing properties and wear resistance. Additionally, shoulder straps 6702A and 6702B may include a series of multiple loops (a portion of which is labeled as loop 6716 in fig. 44). It is contemplated that shoulder straps 6820A and 6820B may include any number of loops 6716 without departing from the scope of the present disclosure. In one example, a series of loops 6716 extend from adjustment clasps 6714A and 6714B to reinforcement patches 6822A and 6822B that extend across the width of shoulder straps 6820A and 6820B.

Fig. 45 depicts an isometric view of another embodiment of a thermal shield 8010. In one example, the thermal shield apparatus 8010 can be similar to the thermal shield apparatus 6010 and include shoulder straps 8702A and 8702B. As shown, the thermal shield apparatus 8010 may have a substantially cubic geometry with an inclined cover assembly 8300 and a closure 8311. The thermal isolation device 8010 may have a similar construction to the examples previously described in this disclosure, wherein like reference numerals refer to like features having like functionality. In one example, features represented by the same last three digits and optionally the same letter or alphanumeric suffix may be considered to include similar features and materials of construction and/or methods. It is contemplated that the structures of the thermal isolation device 8010 may be coupled to each other by any method and/or fastener elements, such as those previously described throughout this disclosure, and including adhesives, sutures, laser welds, and/or rivets, among others.

In one example, lower adjustment straps (e.g., 8706A) of shoulder straps 8702A and 8702B can be removably coupled to second and third sidewalls 8507B and 8507C. The lower adjustment strap (e.g., 8706A) can include a clasp 8830 configured to be removably coupled to a D-ring 8832 that is attached to a side wall (e.g., the third side wall 8507C) of the insulating device 8010 by a webbing loop 8834. It is contemplated that the depicted hook 8830 and D-ring 8832 may additionally or alternatively include any detachable attachment mechanism, such as buckles (similar to one or more of buckles 6714A and 6816) or hook and loop fasteners. Additionally or alternatively, the catch 8830 can be configured to be removably coupled directly to the webbing loop 8834 without the use of a D-ring loop 8832. In one example, the clasps 8830 and D-shaped loops 8832 may be constructed of a polymer, metal, alloy, fiber reinforced material, or ceramic, among others.

FIG. 46 schematically depicts one embodiment of a loose-loop fastener 6818, as described with respect to FIG. 44. In one example, one or more gap ring fasteners 6818 can be used to attach the waist band 6810 to the lower attachment loops 6718A and 6718B. As shown, the clearance ring fastener can include an elongated loop element 9850 having a clearance 9852. The gap 9852 may be used to removably couple the gap ring fastener 6818 to the lower attachment loop 6718 (not depicted in fig. 46) by: temporarily deforming a portion of the lower attachment loop, inserting the deformed portion through the gap 9852 and extending the portion once within the aperture 9854 of the gap ring fastener 6818. In one example, the clearance ring fastener 6818 can be constructed of aluminum. In other embodiments, the clearance ring fastener 6818 can be constructed of another metal, alloy, polymer, fiber-reinforced material, or ceramic, or a combination thereof.

In one example, insulation devices such as devices 1010, 2010, 3010, 4010, 5010, 6010, and 8010 described throughout this disclosure may include one or more zipper assemblies, similar to closure 6311. Alternative embodiments of the zipper assembly may include a curved geometry. For example, the zipper may be implemented such that it may be coupled to complex geometries having multiple curved regions, rather than to a flat surface. Additionally or alternatively, a closure for use with any of the insulation devices described throughout this disclosure may include a zipper having a water reactive barrier configured to be positioned along the length of the zipper track. In this way, the plurality of water reactive barriers may be configured to expand when exposed to water and provide resistance to the slider body of the zipper mechanism when the slider body is used to open or close a zipper closure. In one example, the water reactive barrier may extend continuously along the entire length of the zipper track. The resistance provided by the water reactive barrier may prevent the closure from opening when exposed to water, thereby preventing accidental spillage of fluids, ice and/or materials located within the insulation.

In another example, multiple polymer blocks may be provided along the length of a zipper track, such as the track of closure 6311. The plastic block may be configured to limit movement of the slider body along the zipper track (with or without water present). In this way, the plurality of polymer blocks may impede movement of the slider body along the zipper track. Accordingly, the polymer resistor may have functionality similar to a water reaction resistor, and may prevent accidental spillage of fluids, ice, and/or materials stored within the insulation.

It is further contemplated that the frame may be incorporated into any of the insulation devices described throughout this disclosure. The frame may be used to distribute the mass and center of gravity of the portable insulation device symmetrically and/or in balance. As such, the frame may be formed from one or more of a polymer, a fiber reinforced composite, or a metal or alloy such as aluminum and titanium.

The insulation devices described throughout this disclosure may be further configured to include one or more storage baffles. It is contemplated that the storage baffles may be constructed using one or more or a combination of foam, vacuum insulation panels, metals, alloys, polymers, fiber reinforced materials, and ceramics. The baffles may be individually sealable, waterproof containers, or may be separate and/or segmented areas within the interior compartment of the various insulation devices described herein. In one example, the baffles within the insulated storage compartment may be configured to store a particular size of item.

In one example, multiple storage baffles may be used within the insulation. For example, two baffles may be used, such that one baffle is a sealable water-resistant baffle and the other baffle is a separate area within the insulated storage compartment that is different from the sealable water-resistant baffle. In one example, the baffle may be removable. Any of the insulation devices described in the present disclosure may be configured to receive and store ice, such as dry ice, plain ice made of water, one or more ice bags, and/or a removable pouch that is configured to be filled with a fluid, such as water. The bottom baffles within the insulated storage compartments of the various insulation devices may be specifically designed to receive and store ice and/or removable pouches. Such bottom baffles may be lined and/or made of a conductive material and configured to provide cooling to one or more upper baffles within the insulated storage compartment. In some cases, the upper baffle may also be lined and/or made of a conductive material, and accordingly may be configured to further distribute the cooling capacity provided by the bottom baffle. Additionally or alternatively, each of the baffles within the insulated storage compartment of the insulation device may be configured to receive and store ice, ice packs, and/or removable pouches.

Since the insulation is configured to store ice made of potable water, the baffles within the insulated storage compartment may be configured to separate the water from the ice as the ice melts. Can be configured to allow water to flow into the bottommost reservoir of the interior portion of a portable insulation device, such as devices 1010, 2010, 3010, 4010, 5010, 6010, and 8010. The reservoir may include a hose or tube attached thereto that may pass through an interior portion of the portable insulation device to an upper end of the portable insulation device. The hose or tube may extend therefrom out of the interior of the insulation and may include a one-way connection at the end portion. The one-way nipple may be a drinking nipple and may be configured to release water from the internal reservoir when actuated by a user of the insulating device. The reservoir may further comprise an air pump or bladder that can be manually or electrically pumped to increase the pressure within the reservoir. In the pressurized case, the reservoir may assist in pushing water through the hose or tube and out through the one-way nipple when actuated. It is further contemplated that the water may be filtered prior to being dispensed through the drinking nipple.

In certain embodiments, a peripheral cooling vessel may be positioned adjacent to an insulated storage compartment of an insulation device described throughout this disclosure and configured to provide cooling to the insulated storage compartment. In such embodiments, the peripheral cooling vessel may be configured to receive and store plain ice, dry ice, one or more ice packs, and/or removable pouches made of water. The peripheral cooling vessel may be lined or made of a conductive material to achieve a cooling profile to the insulated storage compartment. The peripheral cooling vessel may further be a sealable waterproof vessel.

The peripheral cooling vessel may be secured to a front, bottom, side, and/or rear portion of the insulated storage compartment, and may be configured to be releasably attached to the insulated storage compartment. In some examples, the peripheral cooling vessel may be rigidly attached to the insulated storage compartment. In the releasably attached configuration, the peripheral cooling vessel is detachable from the portable insulating apparatus.

In some embodiments, the baffles within the insulated and non-insulated storage compartments may be angled to extend from the back-most and rear-most portions upwardly and outwardly toward the front-most and/or forward-facing portions of the particular storage compartment. The baffles are oriented such that the center of gravity of the portable insulation device 100 is proximate to the back-most and rear-most portions of the device, which, as described above, may be configured to contact the back and shoulders of the carrier during carrying. Thus, the angled baffles may provide a symmetric weight distribution and center of gravity for the portable insulation device 100.

An example insulation device may include an outer shell, an inner liner, an insulation layer that floats freely between the outer shell and the inner liner, and a waterproof closure. The top of the housing has a first peripheral circumference and the bottom of the housing has a second peripheral circumference. The first perimeter circumference may be equal to the second perimeter circumference. The closure may be a zipper assembly comprising a plurality of zipper teeth, and the zipper teeth may be formed of plastic or metal. The housing may be made of a double-laminated TPU nylon fabric. The liner may be made of a double-laminated TPU nylon fabric. The insulation layer may be formed from a closed cell foam. The insulation layer may be made of a blend of NBR and PVC, and at least a portion of the insulation layer may be comprised of an EVA foam layer. The housing may further include at least one of a strap or a handle. The housing may further comprise at least one ring for securing the insulation means.

An example insulation apparatus may include an outer shell, an inner liner, a closure adapted to seal at least one of the outer shell or the inner liner, and an insulation layer between the outer shell and the inner liner. The closure may have first and second flanges, and the outer liner may be secured to top surfaces of the first and second flanges, while the inner liner may be secured to bottom surfaces of the first and second flanges. The outer liner and inner liner may be connected to the closure by a polymer weld. The housing may have a first circumference and a second circumference, both having an elliptical shape. The closure may be adapted to act as a barrier to fluid. The closure may be a zipper arrangement that is water tight at pressures up to 7psi above atmospheric pressure.

An exemplary method of assembling an insulation device may comprise: forming a liner having an inner vessel; forming a housing; forming a thermal insulation layer between the inner liner and the outer shell; and a securing closure configured to resist fluid from penetrating into, out of, the barrier of the inner vessel, wherein the closure is secured to the planar surface and to the outer and inner shells. The outer shell and the inner shell can only be connected to the closure and not to the insulation between the outer shell and the inner liner.

A waterproof polymer weld may be formed between the closure and the inner shell and between the closure and the outer shell when the closure, the outer shell and the inner liner are on a horizontal plane. The outer shell and the inner layer may be formed from a TPU nylon material. The closure may have a first flange and a second flange. The outer liner may be secured to top surfaces of the first and second flanges, and the inner liner may be secured to bottom surfaces of the first and second flanges.

The method may further include forming the insulation layer from a rectangular shape and rolling the rectangular shape into a cylindrical shape. The top portion of the insulation layer has a first peripheral circumference and the bottom portion of the insulation layer has a second peripheral circumference. The first perimeter circumference may be equal to the second perimeter circumference.

Another example insulation may include: a housing; a liner forming a storage compartment; a foam layer that floats freely between the outer liner and the inner liner, the foam layer providing thermal insulation; an opening extending through the outer layer and the inner layer; and a closure adapted to substantially seal the opening. The closure may be substantially waterproof so as to prevent liquid from flowing out of the opening.

The insulation apparatus may also include an upper wall defining an upper wall circumference, an upper wall length, and an upper wall width, and a base defining a base circumference, a base length, and a base width. The upper wall circumference may be equal to the base circumference and the ratio of the upper wall length to the upper wall width may be greater than the ratio of the base length to the base width. In one example, the thermal gain ratio of the insulation may be about 1.0-1.5 degF/hr.

Another example method of forming an insulation device may include: forming a liner first portion and an outer shell first portion; securing the first portion of the liner and the first portion of the shell to the sealable closure to form a lid assembly; forming a second portion of the liner and securing the second portion of the liner to the first portion of the liner to form the liner; forming a second portion of the housing; winding the rectangular foam portion to form a first cylindrical foam portion and securing the foam base portion to the first cylindrical portion to form a foam assembly; inserting the foam assembly into the second portion of the housing; inserting the liner into the foam assembly; and stitching the first portion of the housing to the second portion of the housing. The liner first portion and the shell first portion may be welded to the closure. The closure may be provided with at least one flange, and the flange may be secured to a bottom surface of the first portion of the outer shell and a top surface of the first portion of the liner. The foam may float between the outer shell second portion and the inner liner second portion.

An example portable thermal insulation apparatus may include: an outer liner; a liner forming a storage compartment; a foam layer between the outer liner and the inner liner. The foam layer may be adapted to provide thermal insulation. The example portable insulation device may further include: an opening extending through one of the outer layer and the inner layer; and a closure device for substantially sealing the opening. The closure may be substantially waterproof.

In one example, the portable cooler may include an aperture in the top of the cooler that is opened and closed by a zipper arrangement, allowing access to the chamber within the cooler. The aperture may prevent any fluid from leaking out of the cooler if the cooler is tipped or in any configuration other than upright. The zipper assembly also prevents any fluid from seeping into the cooler chamber if the cooler is exposed to precipitation, other fluids, or submersion.

An example method of assembling a zipper arrangement on an aperture (the zipper arrangement configured to be impervious to water or other liquids and fluids) may include attaching a waterproof zipper to both the outer shell and the inner liner via material welding. This method may result in the chamber being impervious to water and other liquids when the zipper arrangement over the aperture is sealed.

In one example, an insulation device may include: a housing; a liner forming a storage compartment; a foam layer floatingly formed between the outer liner and the inner liner, the foam layer providing thermal insulation; an opening extending through the outer layer and the inner layer; a closure adapted to substantially seal the opening, the closure being substantially waterproof to prevent liquid from flowing out of the opening when the insulating device is in any orientation. In one example, in the first configuration, the top portion of the housing may have a first peripheral circumference. The housing may include a bottom portion, and in a second configuration different from the first configuration, the bottom portion of the housing may have a second peripheral circumference, and the first peripheral circumference may be equal to the second peripheral circumference. Both the first configuration and the second configuration may be elliptical. In one example, the thermal insulation apparatus can include an upper wall that can define an upper wall circumference, an upper wall length, and an upper wall width, and a base that can define a base circumference, a base length, and a base width. The upper wall circumference may be equal to the base circumference and the ratio of the upper wall length to the upper wall width may be greater than the ratio of the base length to the base width. The insulation time of the insulation device may be about 11 to 20 hours. However, in one example, the cold-holding time may be 11 to 15 hours. In another example, the cold-holding time may be about 12.24 hours. The thermal gain ratio of the insulation may be about 1 to 1.5degF/hr, and in one particular example, the thermal gain ratio may be about 1.4 degF/hr. The storage compartment may be configured to retain the liquid therein while inverted for more than 15 minutes. In one particular example, the storage compartment may be configured to retain liquid therein for a period of greater than 30 minutes when inverted and half of the volume of the storage compartment is filled with liquid.

In one example, the insulation layer may be free to float between the outer shell and the inner liner. The insulation layer may be formed from a closed cell foam, and the insulation layer may be made from a blend of NBR and PVC. In one example, at least a portion of the thermal insulation layer may be comprised of an EVA foam layer. The closure may be a zipper assembly including a plurality of zipper teeth, and the zipper teeth may be formed of plastic.

In one example, the outer shell and the inner liner may be made of a double-laminated TPU nylon fabric. The housing may further include at least one of a strap or a handle. The housing may comprise at least one ring for securing the insulation means. The insulation layer may be configured to maintain the interior temperature of the insulation device at a temperature of less than 50 degrees fahrenheit for 65 to 85 hours. The closure may be formed with first and second flanges, and the outer liner may be fixed to top surfaces of the first and second flanges. The inner liner may be secured to the bottom surfaces of the first and second flanges. The outer liner and inner liner may be connected to the closure by a polymer weld. In one example, the closure may be water tight at pressures up to 2 to 14psi above atmospheric pressure. A loop patch may also be provided on the insulation.

In another example, an insulation device may include: a housing; a liner forming a storage compartment; a foam layer floating between the outer liner and the inner liner, the foam layer providing thermal insulation; an opening extending through the outer layer and the inner layer; a closure adapted to substantially seal the opening. The closure may be substantially waterproof so as to prevent liquid from flowing out of the opening when the insulating device is inverted for a period of time greater than 15 minutes. The thermal gain of the insulation may be about 1.0 to 1.5 degF/hr. The insulation means may comprise at least one handle. The at least one handle may be configured to support a weight of 100 to 300 pounds for 1 to 10 minutes, but does not show any signs of failure. In one example, the insulation may be configured to withstand a piercing force of 35 pounds to 100 pounds.

An example method of forming an insulation device may include: forming a liner first portion and an outer shell first portion; securing the first portion of the liner and the first portion of the shell to the sealable closure to form a lid assembly; forming a second portion of the liner and securing the second portion of the liner to the first portion of the liner to form the liner; forming a second portion of the housing; winding the rectangular foam portion to form a first cylindrical foam portion and securing the foam base portion to the first cylindrical foam portion to form a foam assembly; inserting the foam assembly into the second portion of the housing; inserting the liner into the foam assembly; and securing the housing first portion to the housing second portion to form the housing. The method may further comprise: a fixed closure configured as a barrier to prevent fluid from seeping into, and out of, the inner vessel; and forming a waterproof polymer weld between the closure and the inner shell and between the closure and the outer shell when the closure, the outer shell and the liner are on one plane.

In one example, the liner first portion and the shell first portion may be secured to the closure. The closure may be provided with at least one flange and the flange may be secured to the bottom surface of the first portion of the outer shell and the top surface of the first portion of the liner. The foam may be free to float between the outer shell second portion and the inner liner second portion. The outer shell and the inner shell are only connected to the closure and cannot be connected to the insulation between the outer shell and the inner liner. The outer shell may be formed from a TPU nylon material and the inner liner may be formed from a TPU nylon material. The closure may comprise a first flange and a second flange. The outer liner may be secured to top surfaces of the first and second flanges, and the inner liner may be secured to bottom surfaces of the first and second flanges. The top of the insulation layer may have a first peripheral circumference. The bottom of the insulation layer may have a second peripheral circumference. The first perimeter circumference may be equal to the second perimeter circumference.

In one example, an insulation device may include: a housing defining a sidewall; a liner forming a storage compartment; an insulation layer positioned between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment; an opening extending through the outer shell and the inner liner; and a closure adapted to substantially seal the opening, the closure being substantially waterproof to prevent liquid from flowing out of the opening when the insulating device is in any orientation. The insulation means may comprise a vertically extending forward facing surface and the closure may be located on the forward facing surface. The cross-section of the thermal shield apparatus may approximate a pentagon in the deployed position, and the cross-section of the thermal shield apparatus may approximate a trapezoid in the deployed position. The insulation device may further include a base, and the insulation layer may insulate the base. The base may also include additional insulation.

The insulation apparatus may further include a lower folded portion configured to cover the closure. The lower folded portion includes a first section and a second section, and wherein the first section is free of insulation and the second section includes insulation. The lower folded portion may be at least partially free of foam. The lower folded portion may be configured to be secured to the sidewall. The lower folded portion may include at least one hook and the sidewall may include at least one loop. The hook may be configured to engage the loop to secure the lower folded portion to the sidewall. The lower folded portion may be secured to the sidewall, and the lower folded portion may extend at least partially in a substantially horizontal direction. The lower folded portion may define a first width, and the closure extends across at least 95% of the first width. The lower folded portion may also include a handle configured to be grasped by a user when the lower folded portion is secured to the sidewall.

The insulation layer may comprise a foam material. The insulation layer may include a first portion and a second portion, and the second portion may be formed thicker than the first portion. The insulation layer may be at least partially formed in a T-shape. The insulation layer may be formed at least in part from a first rectangle and a second rectangle, and the first rectangle may have a larger area than the second rectangle. The first rectangle may have a first rectangle width and the second rectangle may have a second rectangle perimeter. The first rectangular width may approximate the second rectangular perimeter. The second rectangle may extend into the lower folded portion. The insulation layer may have a first height and a second height, and the first height may be greater than the second height. A majority of the insulation layer may extend to the second height.

A method of forming an insulation arrangement may include: forming a liner defining a storage compartment; forming a housing defining a sidewall; placing an insulation layer between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment; placing openings in the inner liner and the outer shell; and placing a closure between the inner liner and the outer shell. The closure may be adapted to substantially seal the opening, and the closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulating device is in any orientation. The method may further include forming a lower folded portion configured to cover the closure, thereby providing the lower folded portion with a first section and a second section. The first section may be free of insulation and the second section may contain insulation. The lower folded portion may be at least partially free of foam. The lower folded portion may be configured to be secured to the sidewall. The method may further comprise: forming the insulation layer at least partially in a T-shape; forming a thermal barrier at least partially in a first rectangle and a second rectangle; and forming a first rectangle having an area larger than that of the second rectangle. The method may further comprise: extending the second rectangle into the lower folded portion; and providing an insulating layer on the base and an additional insulating layer along the base.

In another example, an insulation device may include: a housing defining a sidewall; a liner forming a storage compartment; and a thermal insulation layer located between the outer shell and the inner liner. The insulation layer may provide insulation to the storage compartment. The insulation may include an opening configured to allow access to the storage compartment; and a closure adapted to substantially seal the opening. The insulation may include a bonding material, and the bonding material may be placed over a joint between the inner liner and the outer shell. The adhesive material may be stitched to the thermal insulation device, and the stitching may form an opening in the enclosure to vent air trapped between the thermal insulation layer and the enclosure. The bonding material may form at least one strip for holding the insulation device. The adhesive material may include a first folded portion and a second folded portion attached to the housing, and the second folded portion may form a strip.

The thermal insulation may be approximately trapezoidal when viewed from the front; whereas the insulation may be approximately conical in side view. In one example, the insulation increases from 0F to 50F over a duration of 70 hours or more when filled with 0.52 pounds of ice per quart in terms of insulation capacity.

The closure may be substantially waterproof so as to prevent liquid from flowing out of the opening when the insulating device is in any orientation. In one example, the insulation may be configured to invert for 15 minutes without any water escaping or leaving the storage compartment. The closure may be configured to remain in the open position when the closure is unsealed. The closure may be a zipper. In one example, the closure extends at least 80% of the length of the thermal isolation device as measured along the closure. The length of the closure may be longer than the length of the bottom of the thermal insulation device, and the length of the closure is at least 5% longer than the length of the bottom of the thermal insulation device. The insulation means may comprise a vertically extending forward facing surface and the closure may be located on the forward facing surface. The handle may be located on a rearward facing surface opposite the forward facing surface.

In an example insulation arrangement, the insulation layer may comprise a foam material. The insulation layer may include a first portion and a second portion, and the second portion may be formed thicker than the first portion. The insulation layer may be formed at least in part from a first rectangle and a second rectangle, and the first rectangle may have a larger area than the second rectangle. The insulation layer may have a first height and a second height, and the first height may be greater than the second height. In one example, a majority of the insulation layer may extend to the second height. Additionally or alternatively, a front portion of the insulation may extend to the second height and a rear portion of the insulation may extend to the first height. The insulation device may include a base, and the insulation layer may insulate the base. The base may also include additional or separate insulation layers. In one example, the insulation layer may cover 80% or more of the inner liner (which covers the storage compartment), or the insulation layer may cover 90% or more of the inner liner (which covers the storage compartment).

In another example, a method of forming an insulation device may include: forming a liner defining a storage compartment; forming a housing defining a sidewall; placing an insulation layer between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment; placing openings in the inner liner and the outer shell; a closure is positioned between the inner liner and the outer shell, the closure being adapted to substantially seal the opening, the closure being substantially waterproof so as to prevent liquid from flowing out of the opening when the insulating device is in any orientation. The method may further comprise: the insulating layer is formed at least partially in a first rectangle and a second rectangle, and forms a first rectangle having a larger area than the second rectangle. The method may further comprise: providing a thermal insulation layer on the base; and providing an additional layer of insulation along the base.

An example insulation device may include: a housing defining a first sidewall; a liner forming a storage compartment; an insulation layer located between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment. The outer shell and the inner liner may define an opening, and the opening may be configured to allow access to the storage compartment. The closure may be adapted to substantially seal the opening, and the closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulating device is in any orientation. The housing may include a second sidewall and a third sidewall, and the opening may extend through the first sidewall, the second sidewall, and the third sidewall. The heat insulation means may be in the shape of a cuboid. The inner liner and the outer shell may form a joint, and the joint may include a vent to gas trapped between the inner liner and the outer shell. The housing may include one or more handles, and the exhaust port may be formed near the location of the one or more handles. The closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulation is dropped from a height of six feet.

The insulation apparatus may also include a lid assembly and a body assembly. The cover assembly and the body assembly may together form an inner liner, an insulating layer, and an outer shell. The cover assembly may include at least a portion of the insulating layer. The cover assembly may further include a handle and a reinforcement layer that is more rigid than the inner liner, insulation layer, and outer shell.

The outer shell may define a bottom wall extending in a first plane, and the inner liner may be secured to the outer shell on a second plane extending perpendicular to the first plane. The liner may be formed from a first sheet and a second sheet, and the first sheet is joined to the second sheet by welding to define a seam, and the seam may be covered with a seam tape. In an alternative example, the liner may be formed by injection molding. The closure may be a zipper and may be substantially waterproof. The zipper may include a pull tab, and the pull tab may be formed of a cloth, wire, or cord. In certain examples, the temperature of the insulation increases from 0 ° f to 10 ° f over a duration of 0.5 hours to 1.5 hours, the temperature of the insulation increases from 10 ° f to 50 ° f over a duration of 22 hours to 28 hours, and the temperature of the insulation increases from 0 ° f to 50 ° f over a duration of 24 hours to 30 hours.

An example method may include: forming a body assembly by forming a lower outer shell, placing a lower insulation layer into the lower outer shell, and securing a lower liner portion to the lower outer shell; forming a lid assembly having an upper outer shell, an upper liner portion, and an upper insulation layer therebetween; and joining the closure assembly to the body assembly by securing the closure between the closure assembly and the body assembly and by securing the bonding material to the body assembly and the closure assembly. The insulation layer may float between the lower outer shell and the lower inner liner portion. The adhesive material may be formed of nylon, and the adhesive material may be sewn to the body component and the lid component. The cover assembly may also be welded to the body assembly. In addition, the cover assembly may be formed with a handle and a reinforcement layer that is more rigid than the inner liner, insulation layer and outer shell. In some examples, the lower liner portion may be formed by injection molding.

The lower liner portion may be secured to the lower outer shell by welding. The weld may be formed by clamping the lower shell to the lower liner section with the top U-shaped section, the plate section, and the bottom U-shaped section and applying an electric current through the top U-shaped section, the plate section, and the bottom U-shaped section. Current may be applied in a first direction through the top, plate and bottom U-shaped portions to weld the first side and current may be applied in a second direction to weld the second side.

An example insulation device may include: a housing defining a first sidewall; a liner forming a storage compartment; an insulation layer located between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment. The example insulation apparatus may also include a back panel support structure externally coupled to the outer shell. The outer shell and the inner liner may define an opening, and the opening may be configured to allow access to the storage compartment. The closure may be adapted to substantially seal the opening, and the closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulating device is in any orientation. The enclosure may include second and third sidewalls defining side portions of the thermal isolation device, and a fourth sidewall defining a back portion of the thermal isolation device. The back panel support structure may be externally coupled to the fourth side wall. The opening may extend through at least a portion of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall. The insulation may also include a shoulder strap attached to the back panel support structure. The heat insulation means may be in the shape of a cuboid. The inner liner and the outer shell may form a joint, and the joint may include a vent to gas trapped between the inner liner and the outer shell. The housing may include one or more handles, and the exhaust port may be formed near the location of the one or more handles. The closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulation is dropped from a height of six feet.

The insulation apparatus may also include a lid assembly and a body assembly. The cover assembly and the body assembly may together form an inner liner, an insulating layer, and an outer shell. The cover assembly may include at least a portion of the insulating layer. The cover assembly may further include a handle and a reinforcement layer that is more rigid than the inner liner, insulation layer, and outer shell.

The outer shell may define a bottom wall extending in a first plane, and the inner liner may be secured to the outer shell on a second plane extending perpendicular to the first plane. The liner may be formed from a first sheet and a second sheet, and the first sheet is joined to the second sheet by welding to define a seam, and the seam may be covered with a seam tape. In an alternative example, the liner may be formed by injection molding. The closure may be a zipper and may be substantially waterproof. The zipper may include a pull tab, and the pull tab may be formed of a cloth, wire, or cord. In certain examples, the temperature of the insulation increases from 0 ° f to 10 ° f over a duration of 0.5 hours to 1.5 hours, the temperature of the insulation increases from 10 ° f to 50 ° f over a duration of 22 hours to 28 hours, and the temperature of the insulation increases from 0 ° f to 50 ° f over a duration of 24 hours to 30 hours.

An example method may include: forming a body assembly by forming a lower outer shell, placing a lower insulation layer into the lower outer shell, and securing a lower liner portion to the lower outer shell; a lid assembly is formed having an upper outer shell, an upper liner portion, and an upper insulation layer therebetween. The method may further comprise: the method includes forming a back panel support structure, joining the back panel support structure to a back portion of the body assembly, and joining the lid assembly to the body assembly by securing the closure between the lid assembly and the body assembly and by securing an adhesive material to the body assembly and the lid assembly. The method may further include forming a shoulder strap and engaging the shoulder strap to the back panel support structure. The insulation layer may float between the lower outer shell and the lower inner liner portion. The adhesive material may be formed of nylon, and the adhesive material may be sewn to the body component and the lid component. The cover assembly may also be welded to the body assembly. In addition, the cover assembly may be formed with a handle and a reinforcement layer that is more rigid than the inner liner, insulation layer and outer shell. In some examples, the lower liner portion may be formed by injection molding.

The lower liner portion may be secured to the lower outer shell by welding. The weld may be formed by clamping the lower shell to the lower liner section with the top U-shaped section, the plate section, and the bottom U-shaped section and applying an electric current through the top U-shaped section, the plate section, and the bottom U-shaped section. Current may be applied in a first direction through the top, plate and bottom U-shaped portions to weld the first side and current may be applied in a second direction to weld the second side.

An example insulation pack may include an outer shell having a cubic shape and defining a first sidewall defining a front portion of the insulation pack. The second and third side walls may define side portions of the thermal isolation device backpack, and the fourth side wall may define a back portion of the thermal isolation device backpack. The thermal isolation device backpack may additionally include: a liner forming a storage compartment; an insulation layer located between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment. The example insulated apparatus backpack may also include a back panel support structure externally attached to the outer shell. The example insulated device backpack may additionally include a shoulder strap coupled to the back panel support structure. The outer shell and the inner liner may define an opening, and the opening may be configured to allow access to the storage compartment. The closure may be adapted to substantially seal the opening, and the closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulating device is in any orientation. The back panel support structure may be externally coupled to the fourth side wall. The opening may extend through at least a portion of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall. The inner liner and the outer shell may form a joint, and the joint may include a vent to gas trapped between the inner liner and the outer shell. The housing may include one or more handles, and the exhaust port may be formed near the location of the one or more handles. The closure may be substantially waterproof to prevent liquid from flowing out of the opening when the insulation is dropped from a height of six feet.

The invention is disclosed above and in the accompanying drawings with reference to a variety of examples. The purpose served by the disclosure, however, is to provide an example of the various features and concepts related to the invention, not to limit the scope of the disclosure. One skilled in the relevant art will recognize that numerous variations and modifications may be made to the examples described above without departing from the scope of the present invention.

Claims (29)

1. An insulated unit backpack comprising:

a housing having a cubic shape, the housing further comprising:

a first sidewall defining a front portion of the thermal isolation device backpack; and

a second sidewall and a third sidewall defining a side portion of the thermal isolation device backpack, and a fourth sidewall defining a back portion of the thermal isolation device backpack;

a liner forming a storage compartment;

an insulation layer positioned between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment;

a back panel support structure externally coupled to the outer shell;

a shoulder strap coupled to the back panel support structure;

an opening configured to allow access to the storage compartment; and

a closure adapted to substantially seal the opening, the closure being substantially waterproof so as to prevent liquid from flowing out of the opening when the insulating device is in any orientation,

wherein the opening extends through at least a portion of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall.

2. The insulated unit backpack of claim 1, wherein the back panel support structure is externally coupled to the fourth side wall.

3. The insulated unit backpack of claim 1, further comprising a waist belt removably coupled to the fourth side wall.

4. The insulated unit backpack of claim 1, wherein the back panel support structure comprises an outer layer and an inner layer, and wherein the outer layer of the back panel support structure comprises compression molded ethylene vinyl acetate copolymer.

5. The insulated unit backpack of claim 1, wherein the inner liner and the outer shell form a joint, and wherein the joint includes a vent to gas.

6. The insulated unit backpack of claim 1, wherein the housing includes one or more handles, and wherein an exhaust port is formed adjacent to the one or more handles.

7. The insulated unit backpack of claim 1, wherein the enclosure is substantially waterproof so as to prevent liquid from flowing out of the opening when the insulated unit is completely filled with water and falls from a distance of six feet.

8. The insulated unit backpack of claim 1, wherein the outer shell defines a bottom wall extending in a first plane, and wherein the liner is secured to the outer shell in a second plane extending perpendicular to the first plane.

9. The insulated unit backpack of claim 1, wherein the inner liner is formed from a first piece and a second piece, and wherein the first piece is joined to the second piece by welding to define a seam, and wherein the seam is covered by a seam tape.

10. The insulated unit backpack of claim 1, wherein the inner liner is formed by injection molding.

11. The thermally insulated unit backpack of claim 1, wherein the enclosure is a zipper and is substantially waterproof, and wherein the zipper includes a pull tab formed of a cloth, wire, or cord.

12. The insulated unit backpack of claim 1, further comprising a lid assembly and a body assembly.

13. The insulated unit backpack of claim 12, wherein the lid assembly and the body assembly together form the inner liner, the insulation layer, and the outer shell.

14. The insulated unit backpack of claim 12, wherein the cover assembly includes at least a portion of the insulation layer.

15. The insulated unit backpack of claim 12, wherein the cover assembly includes a handle and a reinforcement layer, the reinforcement layer being more rigid than the inner liner, the insulation layer, and the outer shell.

16. The insulated unit backpack of claim 1, wherein the insulation layer floats between the inner liner and the outer shell.

17. The insulated unit backpack of claim 1, wherein the insulation layer is attached to the inner liner or the outer shell.

18. An insulation device comprising:

a housing defining a first sidewall;

a liner forming a storage compartment;

an insulation layer positioned between the outer shell and the inner liner, the insulation layer providing insulation to the storage compartment;

a back panel support structure externally coupled to the outer shell;

an opening configured to allow access to the storage compartment; and

a closure adapted to substantially seal the opening, the closure being substantially waterproof so as to prevent liquid from flowing out of the opening when the insulating device is in any orientation.

19. The thermal isolation device of claim 18, wherein the first sidewall defines a front portion of the thermal isolation device, wherein the housing further comprises a second sidewall and a third sidewall, the second sidewall and the third sidewall defining side portions of the thermal isolation device; and

a fourth sidewall defining a back portion of the insulation device, and wherein the back panel support structure is externally coupled to the fourth sidewall.

20. The thermal isolation device of claim 19, wherein the opening extends through at least a portion of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall.

21. The thermal isolation device of claim 18, further comprising a shoulder strap coupled to the back panel support structure.

22. The thermal insulation of claim 18, wherein the thermal insulation is in the shape of a cuboid.

23. The thermal isolation device of claim 18, wherein the inner liner and the outer shell form a joint, and wherein the joint includes a vent to gas.

24. The thermal isolation device of claim 18, wherein the housing includes one or more handles, and wherein a vent is formed adjacent the one or more handles.

25. The thermal insulation apparatus of claim 18, wherein the liner is formed from a first piece and a second piece, and wherein the first piece is joined to the second piece by welding to define a seam, and wherein the seam is covered by a seam tape.

26. The thermal insulation apparatus of claim 18, wherein the inner liner is formed by injection molding.

27. A method, comprising:

forming a body assembly by forming a lower outer shell, placing a lower insulation layer into the lower outer shell, and securing a lower liner portion to the lower outer shell;

forming a lid assembly having an upper outer shell, an upper liner portion, and an upper insulation layer therebetween;

forming a back panel support structure and joining the back panel support structure to a back portion of the body assembly; and

the closure assembly is joined to the body assembly by securing a closure between the closure assembly and the body assembly and by securing an adhesive material to the body assembly and the closure assembly.

28. The method of claim 27, further comprising:

forming a shoulder strap and joining the shoulder strap to the back panel support structure.

29. The method of claim 27, wherein the insulation layer floats between the lower outer shell and the lower liner portion.

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