EP3925900B1

EP3925900B1 - Assembly of nestable containers with foldable thermal inserts and method of using the same

Info

Publication number: EP3925900B1
Application number: EP20181295.5A
Authority: EP
Inventors: Eyal KORKUS
Original assignee: Logistiplast Ltd
Current assignee: Logistiplast Ltd
Priority date: 2020-06-21
Filing date: 2020-06-21
Publication date: 2023-08-23
Anticipated expiration: 2040-06-21
Also published as: EP3925900C0; EP3925900A1

Description

The present invention in general pertains to the art of transportation and manufacture of containers. In particular the present invention relates to stackable and nestable containers, configured with a foldable thermal insert, as well as to techniques of using the same.

BACKGROUND ART

Stackable and nestable containers are widely used today. There are numerous solutions known in the art for achieving the nestable/stackable functionality. Such stackable and nestable containers are typically characterized by two different conformations, where upon rotating one container by 180 degrees relatively to another container or upon altering a confirmation of an element of one container the switch between the nestable and stackable functionality is achieved.
It is believed that the pertinent state-of-the-art is represented by the following patent literature: CN106742785 , CN106043886 , EP1225131 , DE4109151 , DE576647 , JP2000203665 , US2006254948 , US2020148453 , US2002070267 , US2009001086 , US1865688 , US4848578 , US5598943 , US6325281 , US7303075 , WO2010030191 , WO2012028567 , WO2017172029 and WO2017082333 .
US2006254948 which is believed to be the most relevant prior art teaches nestable containers having a reversibly deformable covering that is reversibly deformable from a covering position to a storage position, wherein the covering has a projected surface area in the storage position that is less than a projected surface area of the closure in the covering position such that the covering is storable inside the container while other containers of identical size and shape are nested in the container. The covering in US2006254948 may include a fastener that, when fastened, prevents movement of the covering from the storage position to the covering position and the covering and/or container may include a gasket for sealing.
US2020/148453 discloses a temperature-regulating lid for an insulated box assembly and a method for using an insulated box assembly are disclosed. The temperature-regulating lid for an insulated box assembly of this document can comprise a lid box comprising a top panel, a bottom panel, and at least one side panel, the lid box defining a cavity; and a temperature-regulating insert positioned in the cavity.
US1865688 discloses a corrugated container for perishable foodstufls in which such foodstuffs are refrigerated with solid carbon dioxide.
US5598943 discloses a container for holding and carrying objects, including groceries, and for enabling those objects to better maintain their temperature. The container of US5598943 comprises an insulated body having a cavity which opens upward, a movable lid which can fit across the cavity's opening to close it, and a removable, relatively rigid, basket which fits within the cavity. The insulated body and basket in US5598943 have a size to enable two, but not three, standard grocery bags to stand up within the enclosed basket when the lid is shut. The basket in US5598943 has one or more handles which make it easy to remove its contents from the insulated body. The inside surfaces of the insulated body and the basket in US5598943 are tapered, so the basket can be easily withdrawn from the insulated body and so more than one basket can be stacked inside the insulated body. Space is provided in US5598943 between the basket and the insulated body for cooling packs. The basket in US5598943 is spaced from the interior of the insulated body, to enable air cooled by the cooling packs to circulate around the basket and to provide insulation. The bottom of the insulating body in US5598943 contains treads or teeth to prevent it from slipping relative to the surface it is placed upon.
US6325281 discloses an insulating shipping container including an outer cardboard carton with a foldable top; an open-top, rigid, first thermally insulating housing formed of expanded polystyrene and removably disposed in the outer carton; a second open-top, thermally insulating housing formed of vacuum insulating panels and removably disposed in the first housing; an inner cardboard carton with a foldable top removably disposed in the second housing; and a closure structure including a vacuum insulating panel and expanded polystyrene panels for closing the open tops of the second and first housings.
Documents US6253948 and WO95/10455 are further relevant prior art documents.

SUMMARY OF THE INVENTION

The present invention is disclosed in the independent claims 1 and 10. Further embodiments are disclosed in the dependent claims.

DEFINITIONS

The term stackable and nestable containers as referred to herein is to be construed as in a non-limiting manner including any containers specially shaped or provided with fittings or attachments, to facilitate nesting and stacking, with movable parts configured to be placed in alternative positions for nesting the containers when empty and for stacking them when full, corresponding to class B65D21/06 of the cooperative patent classification (CPC). The term stackable and nestable containers as referred to herein is to be construed as in a non-limiting manner including any open-ended containers shaped to be nested when empty and superposed when full, specially adapted for nesting after rotation around a vertical axis, corresponding to class B65D 21/043 of the CPC.
The term thermal as referred to herein is to be construed as in a non-limiting manner including thermally insulating materials, configured for thermally insulating from the ambient environment, as well as thermally accumulating materials and/or elements, configured for inducing a warmed or cooled environment.
Whenever in the specification hereunder and particularly in the claims appended hereto a verb, whether in base form or any tense, a gerund or present participle or a past participle are used, such terms as well as preferably other terms are to be construed as actual or constructive, meaning inter alia as being merely optionally or potentially performed and/or being only performed anytime in future. The terms essentially and substantially, or similar relative terms, are to be construed in accordance with their ordinary dictionary meaning, namely mostly but not completely.
As used herein, the term "or" is an inclusive "or" operator, equivalent to the term "and/or," unless the context clearly dictates otherwise; whereas the term "and" as used herein is also the alternative operator equivalent to the term "and/or," unless the context clearly dictates otherwise.

DESCRIPTION OF THE DRAWINGS

The present invention will be understood and appreciated more comprehensively from the following detailed description taken in conjunction with the appended drawings in which:

FIG 1A is a perspective view of a prior art storage device having a nestable container and a cover, known from US20060254948 ;
FIG 1B is a perspective view of the prior art device of FIG 1A , known from US20060254948 , with the cover folded and rotated for placement into the container;
FIG 1C is a cross-sectional view of the prior art device of FIG 1A , known from US20060254948 , nested with identically dimensioned containers, with the lids stored in and between the nested containers;
FIG 2 is an isometric view of two stackable and nestable containers, with foldable thermal inserts in an unfolded configuration, in accordance with some embodiments of the present invention, arranged in a stacked conformation;
FIG 3A is an isometric view of a stackable and nestable container, with a foldable thermal insert in an unfolded configuration, in accordance with some examples not being part of the present invention;
FIG 3B is an exploded isometric view of a stackable and nestable container, with a foldable thermal insert in an unfolded configuration, in accordance with some examples not being part of the present invention;
FIG 3C is a front cross-sectional front view, taken along cross-sectional line C-C, of a stackable and nestable container, with a foldable thermal insert in an unfolded configuration, in accordance with some examples not being part of the present invention;
FIG 3D is a front cross-sectional side view, taken along cross-sectional line D-D, of a stackable and nestable container, with a foldable thermal insert in an unfolded configuration, in accordance with some examples not being part of the present invention;
FIG 4 is an isometric view of a stackable and nestable container, with a foldable thermal insert in a folded configuration, in accordance with some examples not being part of the present invention;
FIG 5 is an exploded isometric view of a stackable and nestable container, with a foldable thermal insert in a folded configuration, in accordance with some examples not being part of the present invention;
FIG 6 is an isometric view of two stackable and nestable containers, with foldable thermal inserts in a folded configuration, in accordance with some embodiments of the present invention, arranged in a nested conformation, where the folded thermal inserts are disposed in-between the bottom faces of the stackable and nestable containers.

All the embodiments of the present invention disclose all the technical features of at least one of the independent claims 1 and 10. The drawings are not necessarily complete and components are not essentially to scale; emphasis instead being placed upon clearly illustrating the principles underlying the present invention.

DETAILED DISCLOSURE OF EMBODIMENTS

Prior to elaborating any example not being part of the invention, as well as any embodiment of the present invention, in order to present the background for the inventive concept more clearly, reference is firstly made to FIG 1A to 1C , showing prior art storage device 1100, shown in Figures 1A to 1C of US20060254948 . Prior art storage device 1100, shown in FIG 1A to 1C , known from US20060254948 , having a container 1102 and a cover 1104 in a covering position 1108. Cover edges 1112 mate with container rim 1114. Cover 1104 has a first portion 1116 and second portion 1118 joined by bendable member 1110. FIG 1B depicts cover 1104 disposed in storage position 1106 by bending of bendable member 1110. The cover fits within container 1102. FIG 1C is a cross section of the container of FIG 1A and 1B , and shows how cover 1104 in storage position 1106 can be placed in container 1102 while it is nested with identical containers. Cover 1104, in position 1106, takes up less than about 20% of the volume of container 1104. A user may fold cover 1104 into position 1106, rotate it about 90 degrees in the plane parallel to the portions 1116, 1118, and place cover 1104 into container 1102. Container 1102 may then be nested with other containers with cover 1102 disposed between the containers.
Illustrative examples not being part of the invention, as well as embodiments of the invention are described below.
In accordance with some embodiments of the present invention, reference is now made to FIG 2 , showing an assembly of stackable and nestable containers 10A and 10B with foldable thermal inserts (not shown) according to the independent claim 1, arranged in stacked conformation 20. Assembly of stackable and nestable container 10A with a foldable thermal insert (not shown) is stacked on top of container 10B, thereby forming stack conformation 20.
In accordance with some examples not being part of the present invention, reference is now made to FIG 3A , showing assembly 10 of stackable and nestable container 30 and foldable thermal insert 12. Container 30 comprises an essentially rectangular parallelepiped shaped shell 16. Configurable elements 14, which exemplarily embodied in a form of bars, are alterable between stacking configuration, shown through FIG 2 to 3D , and nesting configuration shown through FIG 4 to 6 .
It should be acknowledged, however, that the particular example of configurable elements 14 in a form of bars is merely exemplary, whereas a wide variety of configurable elements alterable between stacking and nesting configurations are equally applicable to the present example. Moreover any open-ended stackable and nestable containers shaped to be nested when empty and superposed when full, specially configured for nesting after rotation around a vertical axis, corresponding to class B65D 21/043 of the CPC, are equally applicable to the present example not being part of the present invention.
Foldable thermal insert 12 is accommodated within essentially rectangular parallelepiped shaped shell 16 of container 30, so that configurable elements 14, whether in stacking configuration, shown through FIG 2 to 3D , or in nesting configuration shown through FIG 4 to 6 , are disposed on top or aside of foldable thermal insert 12 in an unfolded configuration.
In accordance with some examples not being part of the present invention, reference is now made to FIG 3B , showing exploded assembly 10 of stackable and nestable container 30 and foldable thermal insert 12. Foldable thermal insert 12 in an unfolded configuration is insertable to and retrievable from essentially rectangular parallelepiped shaped shell 16 of container 30, when configurable elements 14 are in nesting configuration shown through FIG 4 to 6 .
Foldable thermal insert 12 is made of and/or incorporates therein a thermally active and/or thermally passive material. Examples of thermally passive materials include any thermally insulating materials, such as substantially porous materials like polyurethane foam and/or reflective metallic sheeting. Examples of thermally active materials include any thermal energy accumulating and/or producing substances, such as heat and/or cold accumulating elements, configured for actively inducing a higher or lower temperature than the ambient environment.
Foldable thermal insert 12 comprises base portion 22, openable and/or removable top cover 24, flanking sidewalls 26 and longitudinal sidewalls 28. Flanking sidewalls 26 comprise an essentially L-shaped flanges 32, overlapping above longitudinal sidewalls 28, thereby contributing to an essentially hermetic closure of foldable thermal insert 12 in an unfolded configuration.
In accordance with some examples not being part of the present invention, reference is now made to FIG 3C and 3D , showing orthogonal cross-sections, of assembly 10 of stackable and nestable container 30 and foldable thermal insert 12. As can be seen from FIG 3C and 3D , base portion 22 of foldable thermal insert 12 comprises flanking interconnecting portions 34 and longitudinal interconnecting portions 32. Flanking interconnecting portions 34 are configured for forming hinged and/or bendable connection between base portion 22 and flanking sidewalls 26; whereas longitudinal interconnecting portions 32 are configured for forming hinged and/or bendable connection between base portion 22 and longitudinal interconnecting portions 28 of foldable thermal insert 12.
Flanking interconnecting portions 34 and longitudinal interconnecting portions 32 optionally comprise perforated, reduced or otherwise weakened material, facilitating bending and/or partial rotation of flanking sidewalls 26 and longitudinal sidewalls 28, relatively to base portion 22 of foldable thermal insert 12. Flanking interconnecting portions 34 are disposed above longitudinal interconnecting portions 32, so that when longitudinal sidewalls 28 are in a folded configuration, urged toward base portion 22 of foldable thermal insert 12, flanking sidewalls 26 are foldable on top of longitudinal sidewalls 28, as shown through FIG 4 to 6 .
In accordance with some examples not being part of the present invention, reference is now made to FIG 4 and 5 , showing stackable and nestable container 30 in a nesting configuration and foldable thermal insert 12 in a folded configuration. As can be seen from FIG 4 and 5 , in a nesting configuration, configurable elements 14 are disposed aside of essentially rectangular parallelepiped shaped shell 16, thereby rendering foldable thermal insert 12 insertable to and retrievable from container 30. Moreover, in a nesting configuration, configurable elements 14 are disposed aside of container 30, thereby rendering another stackable and nestable container (not shown) insertable into container 30.
Foldable thermal insert 12 in a folded configuration, shown in FIG 4 and 5 , has longitudinal sidewalls 28 folded towards base portion 22 and flanking sidewalls 26 are folded on top of longitudinal sidewalls 28, so that of foldable thermal insert 12 assumes a relatively miniature size. Accordingly, foldable thermal insert 12 in a folded configuration rendering another stackable and nestable container (not shown) insertable into container 30, while foldable thermal insert 12 in a folded configuration is disposed in-between the bottom face of container 30 and the bottom face of another stackable and nestable container (not shown), which is inserted into container 30.
In accordance with some embodiments of the present invention, reference is now made to FIG 6 , showing two stackable and nestable containers 30A and 30B with foldable thermal inserts 12A and 12B according to the independent claim 1, arranged in nested conformation 40. As can be seen from FIG 6 , in nested conformation 40, container 30A is inserted into container 30B, while thermal insert 12B in a folded configuration is disposed in-between the bottom face of container 30A and the bottom face of container 30B. Another stackable and nestable container (not shown) can be inserted into container 30A while thermal insert 12A in a folded configuration is disposed in container 30A according to claim 1 and in-between the bottom face of container 30A and the bottom face of container another stackable and nestable container (not shown) which is inserted into container 30A. It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described herein above. Rather the scope of the invention is defined by the claims which follow:

Claims

An assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) comprises:
(a) a first nestable container (10A) comprising:
(I) a rectangular bottom plate, configured for nesting said first nestable container (10A);

(II) two pairs of longitudinal sidewalls erecting essentially vertically from longitudinal edges of said bottom plate of said first nestable container (10A);

(III) two pairs of lateral sidewalls erecting essentially vertically from lateral edges of said bottom plate of said first nestable container (10A);

(IV) an essentially rectangular top opening of said first nestable container (10A);

(b) a second nestable container (10B) comprising:
(I) a rectangular bottom plate, configured for nesting said second nestable container (10B);

(II) two pairs of longitudinal sidewalls erecting essentially vertically from longitudinal edges of said bottom plate of said second nestable container (10B);

(III) two pairs of lateral sidewalls erecting essentially vertically from lateral edges of said bottom plate of said second nestable container (10B);

(IV) an essentially rectangular top opening of an essentially rectangular parallelepiped shape interior volume of said second nestable container (10B), configured for nesting said first nestable container (10A);
wherein a substantial portion of said first nestable container (10A) is nestable within said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B), in a nesting conformation;

wherein there are

(c)efirst and second foldable thermal inserts (12A, 12B), wherein each one of said first and second foldable thermal inserts (12A, 12B) comprising:
(I) a base portion (22);

(II) a pair of longitudinal sidewalls (28);

(III) a pair of flanking sidewalls (26);

(IV) an openable top cover (24);

wherein said first foldable thermal insert (12A) is configurable in at least two configurations:
(i) an unfolded configuration, in which said first foldable thermal insert (12A) is expandable to assume a major portion of said essentially rectangular parallelepiped shape interior volume of said first nestable container (10A), thereby forming an interior volume of said first foldable thermal insert (12A), configured to accommodate a thermally preserveable payload;

(ii) a folded configuration, in which said first foldable thermal insert (12A) is collapsible to assume only a minor portion of said essentially rectangular parallelepiped shape interior volume of said first nestable container (10A);

wherein said first foldable thermal insert (12A), in said folded configuration, assumes a size configured to be accommodated in said minor portion of said essentially rectangular parallelepiped shape interior volume of said first nestable container (10A), and

wherein said first foldable thermal insert (12A), in said folded configuration, is configured to be disposed on a bottom face of said first nestable container (10A), in said nesting conformation;

wherein said second foldable thermal insert (12B) is configurable in at least two configurations:
(i) an unfolded configuration, in which said second foldable thermal insert (12B) is expandable to assume a major portion of said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B), thereby forming an interior volume of said second foldable thermal insert (12B), configured to accommodate said thermally preserveable payload;

(ii) a folded configuration, in which said second foldable thermal insert (12B) is collapsible to assume only a minor portion of said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B);

wherein said second foldable thermal insert (12B), in said folded configuration, assumes a size configured to be accommodated in said minor portion of said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B), and

wherein said second foldable thermal insert (12B), in said folded configuration, is configured to be disposed in-between a bottom face of said first nestable container (10A) and a bottom face of said second nestable container (10B), in said nesting conformation.
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to claim 1, wherein said first and second nestable containers (10A, 10B) comprise at least one static structural element, configured for rendering said first and second containers (10A, 10B) stackable one on top of another, in a stacked conformation; wherein said second foldable thermal insert (12B) in said unfolded configuration is configured to be accommodated within said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B).
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to claim 1, wherein said first and second nestable containers (10A, 10B) comprise at least one movable element (14), configured for altering between at least two states, thereby rendering said first and second containers (10A, 10B) stackable one on top of another, in a stacked conformation; wherein said second foldable thermal insert (12B) in said unfolded configuration is configured to be accommodated within said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B).
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 1 to 3, wherein said foldable thermal inserts (12A, 12B) comprise a thermally active material selected from the group consisting of: a thermal energy accumulating material, thermal energy producing material, heat accumulating element, cold accumulating element, heat producing element, cold producing element, heat producing device, cold producing device, heat producing apparatus, cold producing apparatus, substances configured for actively inducing a temperature higher than the ambient environment and substances configured for actively inducing a temperature lower than the ambient environment, ice, solid carbon dioxide exothermic materials and endothermic materials.
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 1 to 4, wherein said foldable thermal inserts (12A, 12B) comprise a thermally passive material selected from the group consisting of: thermally insulating materials, substantially porous materials, polyurethane foam, reflective materials, reflective metallic sheetings, vacuum elements and any combination thereof.
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 1 to 5, wherein said foldable thermal inserts (12A, 12B) comprise a flexible material, in at least one joint between at least two members selected from the group consisting of: said base portion (22), said longitudinal sidewalls (28), said flanking sidewalls (26) and said openable top cover (24).
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 1 to 6, wherein at least one member of said foldable thermal inserts (12A, 12B), selected from the group consisting of: said base portion (22), said longitudinal sidewalls (28), said flanking sidewalls (26) and said openable top cover (24), is detachably attachable.
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 1 to 7, wherein said foldable thermal inserts (12A, 12B) are further configurable into a flattened configuration, wherein said base portion (22), said longitudinal sidewalls (28), said flanking sidewalls (26) and said openable top cover (24) are sprawled essentially planarly.
The assembly (20) of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 1 to 7, wherein at least one member of said foldable thermal inserts (12A, 12B), selected from the group consisting of: said base portion (22), said longitudinal sidewalls (28), said flanking sidewalls (26) and said openable top cover (24), comprises an overlapping portion (32) configured for essentially hermetic closure of said interior volume of said foldable thermal inserts (12A, 12B) in said unfolded configuration.
A method of using an assembly of nestable containers (10) with foldable thermal inserts (12A, 12B) according to claim 1 comprises:
(a) providing at least one first nestable container (10A);

(b) providing at least one second nestable container (10B), comprising an essentially rectangular parallelepiped shaped interior volume, configured for accommodating at least a substantial portion of said first nestable container (10A), within said essentially rectangular parallelepiped shaped interior volume of said second nestable container (10B), in a nested conformation;

(c) nesting said at least one first nestable container (10A), within said at least one second nestable container (10B);

(d) providingefirst and second foldable thermal inserts (12A, 12B);
wherein said first foldable thermal insert (12A) is configured to assume at least two configurations:
(i) an unfolded configuration, in which said first foldable thermal insert (12A) is expandable to assume a major portion of said essentially rectangular parallelepiped shape interior volume of said first nestable container (10A), thereby forming an interior volume of said first foldable thermal insert (12A), configured to accommodate a thermally preserveable payload;

(ii) a folded configuration, in which said first foldable thermal insert (12A) is collapsible to assume only a minor portion of said essentially rectangular parallelepiped shape interior volume of said first nestable container (10A);

(e) folding said first foldable thermal insert (12A), into said folded configuration, to assume a size configured to be accommodated in said minor portion of said essentially rectangular parallelepiped shape interior volume of said first nestable container (10A);

(f) disposing said first foldable thermal insert (12A), in said folded configuration, on a bottom face of said first nestable container (10A), in said nesting conformation,
wherein said second foldable thermal insert (12B) is configured to assume at least two configurations:
(i) an unfolded configuration, in which said second foldable thermal insert (12B) is expandable to assume a major portion of said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B), thereby forming an interior volume of said second foldable thermal insert (12B), configured to accommodate said thermally preserveable payload;

(ii) a folded configuration, in which said second foldable thermal insert (12B) is collapsible to assume only a minor portion of said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B);

(g) folding said second foldable thermal insert (12B), into said folded configuration, to assume a size configured to be accommodated in said minor portion of said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B);

(h) disposing said second foldable thermal insert (12B), in said folded configuration, in-between a bottom face of said first nestable container (10A) and a bottom face of said second nestable container (10B), in said nesting conformation.
The method of using an assembly of nestable containers (10) with foldable thermal inserts (12A, 12B) according to claim 10, wherein said at least one first and second nestable containers (10A, 10B) comprise at least one structural element (14), configured for rendering said first and second containers (10A, 10B) stackable one on top of another, in a stacked conformation; wherein said second foldable thermal insert (12B) in said unfolded configuration is configured to be accommodated within said essentially rectangular parallelepiped shape interior volume of said second nestable container (10B).
The method of using an assembly of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 10 or 11, comprises incorporating into said foldable thermal inserts (12A, 12B) at least one thermally active or thermally passive member selected from the group consisting of: a thermally insulating material, substantially porous material, polyurethane foam, reflective material, reflective metallic sheeting, vacuum element, thermal energy accumulating material, thermal energy producing material, heat accumulating element, cold accumulating element, heat producing element, cold producing element, heat producing device, cold producing device, heat producing apparatus, cold producing apparatus, substances configured for actively inducing a temperature higher than the ambient environment and substances configured for actively inducing a temperature lower than the ambient environment, ice, solid carbon dioxide, exothermic materials, endothermic materials and any combination thereof.
The method of using an assembly of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 10 to 12, wherein said foldable thermal inserts (12A, 12B) are further configurable into a flattened configuration, further comprising essentially planarly sprawling base portion (22), said longitudinal sidewalls (28), said flanking sidewalls (26) and said openable top cover (24).
The method of using an assembly of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 10 to 13, further comprising unfolding said foldable thermal inserts (12A, 12B) into unfolded configuration, wherein said foldable thermal inserts (12A, 12B) are expanded to assume a major portion of said essentially rectangular parallelepiped shape interior volume of said first and second nestable containers (10A, 10B).
The method of using an assembly of nestable containers (10) with foldable thermal inserts (12A, 12B) according to any one of the claims 10 to 14, further comprising activating said foldable thermal inserts (12A, 12B), to produce heat or cold.