EP3508434B1 - Convection based temperature assured packaging system - Google Patents

Convection based temperature assured packaging system Download PDF

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Publication number
EP3508434B1
EP3508434B1 EP19159959.6A EP19159959A EP3508434B1 EP 3508434 B1 EP3508434 B1 EP 3508434B1 EP 19159959 A EP19159959 A EP 19159959A EP 3508434 B1 EP3508434 B1 EP 3508434B1
Authority
EP
European Patent Office
Prior art keywords
packaging system
panel
air
channel
channels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19159959.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3508434A1 (en
Inventor
Iftekhar Ahmed
Ajit Ranade
Glen Bersamin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonoco Development Inc
Original Assignee
Sonoco Development Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/661,478 external-priority patent/US9573754B2/en
Application filed by Sonoco Development Inc filed Critical Sonoco Development Inc
Publication of EP3508434A1 publication Critical patent/EP3508434A1/en
Application granted granted Critical
Publication of EP3508434B1 publication Critical patent/EP3508434B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/02—Rigid pallets with side walls, e.g. box pallets
    • B65D19/06—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3823—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of different materials, e.g. laminated or foam filling between walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00019—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
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    • B65D2519/00064—Wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
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    • B65D2519/00159—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00154—Materials for the side walls
    • B65D2519/00174—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00154—Materials for the side walls
    • B65D2519/00184—Combination, e.g. different elements made of different materials, laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00189—Materials for the lid or cover
    • B65D2519/00194—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00189—Materials for the lid or cover
    • B65D2519/00208—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00189—Materials for the lid or cover
    • B65D2519/00218—Combination, e.g. different elements made of different materials, laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00273—Overall construction of the pallet made of more than one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00293—Overall construction of the load supporting surface made of more than one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00323—Overall construction of the base surface made of more than one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00353—Overall construction of the base surface skeleton type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00492—Overall construction of the side walls
    • B65D2519/00502—Overall construction of the side walls whereby at least one side wall is made of two or more pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2519/00004—Details relating to pallets
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    • B65D2519/00577—Connections structures connecting side walls, including corner posts, to each other
    • B65D2519/00616—Connections structures connecting side walls, including corner posts, to each other structures not intended to be disassembled
    • B65D2519/00621—Connections structures connecting side walls, including corner posts, to each other structures not intended to be disassembled sidewalls directly connected to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B65D2519/00716—Connections structures connecting the lid or cover to the side walls or corner posts non-removable lid or covers

Definitions

  • This invention relates to a packaging system for shipping temperature sensitive products. More particularly, this invention relates to a packaging system for shipping temperature sensitive products that reduces or eliminates the need for side refrigerant components and improves thermal performance.
  • This six-sided configuration is inefficient in terms of packing out the product and the refrigerants.
  • refrigerants inserted along the sides of the product shipper between the products and the outer container can fall over and otherwise change position within the shipper.
  • the use of side refrigerants also results in increased weight and shipping cost.
  • US 2,632,311 discloses a box having dry ice in the lid.
  • the dry ice cools the air which then flows down through air spaces 16 in the interior walls.
  • Insulating material 13 is located between the interior walls and a metal outer basket 2. Sullivan does not provide any channels to allow air warmed by the ambient air to flow upward.
  • US 2,533,773 discloses a container having holes 16 through which air can flow from the outside to the inside of the container. These air holes provide air circulation, which may be suitable for ventilation purposes, but would not be suitable if used in a container for shipping a temperature sensitive payload in hot ambient conditions.
  • US 2006/0174648 A1 describes a shipping container that uses a fan to generate forced air circulation.
  • the container may have rectangular posts that define holes 36b that enable unimpeded air circulation about the contents 30.
  • US 2014/083650 A1 (basis for the preamble of claim 1), generally is directed to a convection shipper in which individual posts along the container walls create channels for convective air movement.
  • the present invention is designed to solve the problems described above.
  • the present invention is a packaging system according to claim 1 that utilizes a convection based cooling approach to eliminate the need for side refrigerants and increase packaging efficiency.
  • the invention also reduces the amount of refrigerants required.
  • a packaging system comprising a housing defining a product compartment for holding a temperature sensitive payload.
  • the housing comprises a bottom panel, a top panel located above and in spaced vertical alignment to the bottom panel, side panels extending vertically between the bottom panel and the top panel, and end panels extending vertically between the bottom panel and the top panel.
  • the packaging system comprises one or more channel members affixed to interior surfaces of the side panels and/or end panels to facilitate convective air circulation within the product compartment.
  • the channel member comprises one or more corrugated structures, folded and glued together, each channel member having an open top end and an open bottom end, the one or more corrugated structures defining a series of adjacent, laterally spaced outer channels having a rectangular cross section and designed to carry warmed air upward and a series of adjacent, laterally spaced inner channels having a rectangular cross section and designed to carry cooled air downward.
  • the packaging system 10 comprises a housing 12 that functions as a protective enclosure for the packaging system contents.
  • the housing 12 comprises a bottom panel 14, a top panel 16, two side panels 18 and two end panels 20.
  • the side panels 18 and the end panels 20 extend vertically between the bottom panel 14 and the top panel 16 to form the housing 12.
  • the bottom panel 14 as well as the lower portions of the side panels 18 and the end panels 20 may fit within a bottom tray 22.
  • the packaging system 10 may be wrapped in transparent wrapping (not shown) and placed on a pallet 70.
  • the bottom tray 22 comprises a bottom wall 23 and four side walls 24 extending upward from the periphery of the bottom wall 23.
  • the bottom panel 14 is disposed within the bottom tray 22.
  • Each outer panel that is, the bottom panel 14, the top panel 16, the two side panels 18 and the two end panels 20, may be made of a rigid molded polyurethane (PUR) inner core, preferably about 69,85 mm (2 3 ⁇ 4 inches) thick, enclosed within an outer corrugated cardboard shell.
  • PUR polyurethane
  • Each outer panel may be configured to interlock with each orthogonally adjacent outer panel.
  • Corner board 54 may be glued or otherwise adhered to the adjoining edges of each pair of orthogonally oriented outer panels.
  • the housing 12 defines a product compartment 40 in which a payload 56 may be placed for shipping.
  • a payload 56 may be stacked product containers 57.
  • FIG 2 is a perspective view of a portion of the packaging system 10 of Figure 1 shown with the lid or top panel 16 removed.
  • the top panel 16 is configured to interlock with each orthogonally adjacent outer panel, in this case, the two side panels 18 and the two end panels 20.
  • the top panel 16 is the last of the six outer panels to be added to the packaging system 10.
  • Figure 3 is an exploded view of the packaging system 10 of Figure 1 . From the bottom up, the product compartment 40 is filled with a spacer 26, two refrigerant layers 28, the payload 56, one refrigerant layer 28 and three frozen layers 30.
  • the spacer 26 is disposed on top of and adjacent the bottom panel 14.
  • the spacer 26 may comprise a sheet 27 and spaced apart stubs 29 extending about 1 31,75 mm ( 1 1 /4 inches) downward (as shown in the figure) or preferably upward from the sheet 27.
  • the spacer 26 may be made of any suitable material, including without limitation extruded plastic or corrugated.
  • Each of the two bottom refrigerant layers 28, located between the spacer 26 and the payload 56, may comprise a single unitary structure or, more commonly, multiple refrigerant components (sometimes referred to as "bricks") arranged edge to edge to form a "layer" within the packaging system 10.
  • two refrigerant layers 28 are disposed immediately under the payload 56.
  • the payload 56 may be stacked product containers 57.
  • the product containers 57 may comprise corrugated cardboard boxes for holding laboratory specimens, pharamceuticals, innoculations, or any other suitable payload that requires a temperature assured environment.
  • top refrigerant layer 28 is disposed immediately above the product containers 57. Like the two bottom refrigerant layers 28, the top refrigerant layer 28 may comprise a single unitary structure or, preferably, multiple refrigerant components ("bricks") arranged edge to edge to form a layer.
  • bricks refrigerant components
  • each frozen layer 30 may comprise a single unitary structure or, more commonly, multiple horizontally arranged frozen components ("bricks") that form a layer within the packaging system 10. In the embodiment shown in Figures 1 and 3 three frozen layers 30 are disposed immediately above the top refrigerant layer 28.
  • the cooling layers i.e., the refrigerant layers 28 and/or the frozen layers 30, absorb heat.
  • the refrigerant bricks and the frozen bricks may comprise a foam material having a low weight and high absorbency, a phase change material, and a protective outer container.
  • the refrigerant bricks may comprise a foam material that has been infused with water chilled to about 5C (41F) and contained within a plastic brick-shaped enclosure.
  • the frozen bricks may comprise a foam material that has been infused with water chilled to about -20C (-4F) and contained within a plastic brick-shaped enclosure.
  • the bricks may be rectilinear and shaped like a flattened brick or they may be any suitable three-dimensional shape.
  • the refrigerant bricks and frozen bricks may be similar to those sold under the trademarks PolarPack ® and U-tek ® by Tegrant Diversified Brands, Inc.
  • packaging system 10 has been described as having two refrigerant layers 28 below the payload 56 and one refrigerant layer 28 and three frozen layers 30 above the payload 56, it should be understood that this is just one embodiment of the invention, and that the number of refrigerant layers 28 and frozen layers 30 below and above the payload 56 can vary depending on the cooling requirements and shipping time.
  • packaging system 10 described herein does not include cooling components located around the sides of the payload 56, the disclosure should not be interpreted as necessarily excluding such side cooling components.
  • a foam cushioning layer (not shown in the figures) may be placed between the topmost frozen layer 30 and the top panel 16.
  • a foam cushioning layer may be placed between the topmost frozen layer 30 and the top panel 16.
  • the packaging system 10 comprises multiple vertical posts 34 located within the product compartment 40 adjacent the side panels 18 and/or the end panels 20.
  • the vertical posts 34 may be hollow wound paper posts like those sold by Sonoco Products Company of Hartsville, SC under the trademark SONOPOST ® .
  • the vertical posts 34 may be made of extruded plastic or any suitable material.
  • FIG 4 is a cross-sectional view of the packaging system 10 of Figure 1 taken along line 4-4 showing six vertical posts 34 adhered to a side panel 18.
  • the vertical inner edge 44 of each vertical post 34 may abut the interior contents of the packaging system 10, such as the refrigerant layers 28, frozen layers 30 and product containers 57.
  • Each vertical post 34 has an open top end 46 ( Figures 3 and 6 ) and an open bottom end and defines a vertical inner space 58 within the post 34.
  • Adjacent pairs of vertical posts 34 define vertically oriented channels 60 between the vertical posts 34 that may be about one inch deep when measured from the inner surface of the side panel 18 or end panel 20 to the product containers 57.
  • the vertical posts 34 may be pre-glued or otherwise affixed to the side panels 18 and the end panels 20.
  • each vertical post 34 may be any suitable cross sectional shape, including circular or rectangular, but triangular is preferred.
  • each vertical post 34 comprises an outer facing side 36 adjacent either a side panel 18 (as shown in the figure) or an end panel 20 and two angled sides 38 extending from opposing vertical edges 42 of the outer facing side 36 and meeting along an elongated vertical inner edge or apex 44.
  • the vertical posts 34 are one inch deep when measured from their outer facing side 36 to their apex 44.
  • the packaging system 10 takes advantage of the principle of convective air movement by creating flow spaces around the outer perimphery of the product compartment 40 for air to circulate.
  • the bottom spacer 26 separates the bottom refrigerant layers 28 from the bottom panel 14, creating a horizontally oriented space within which air can flow. Without the bottom spacer 26 cool air that settles near the bottom of the product compartment 40 could stagnate, reducing the ability of the system 10 to maintain all the product containers 57 and their contents within a desirable temperature range.
  • the vertical posts 34 serve at least two functions. First, they reduce the amount of contact between the product containers 57 and the outer panels. In designs where the product containers abut the side panels and end panels more heat enters the product containers. Adding vertical posts 34 separates the product containers 57 from the side panels 18 and end panels 20, significantly reducing the areas of contact between the product containers 57 and the side panels 18 and the end panels 20 and thus the transfer of heat from the exterior to the product containers 57.
  • the vertical posts 34 help facilitate convective air circulation within the product compartment 40 by creating inner spaces 58 within the posts 34 and channels 60 between the posts 34 (and between the side panels 18 and the end panels 20 and the product containers 57) for the movement of air.
  • the product compartment 40 contains a certain amount of air. The air moves within the product compartment 40 because air at different locations has different temperatures and densities. Cooler air (i.e., air cooled by the frozen layers 30) has a higher density and tends to drop down within the product compartment 40. Conversely, as the air at the bottom of the product compartment 40 warms, the warmed air tends to flow upward, thereby setting up a continuously circulating flow of air within the product compartment 40.
  • each vertical post 34 facilitates this process by providing inner spaces 58 within which the warm air can flow upward and channels 60 within which the cooler air can flow downward. Accordingly, each vertical post 34 should be spaced from the top panel 16 and the bottom panel 14 a sufficient distance to facilitate the flow of warmer air through the vertical inner spaces 58 within each vertical post 34.
  • the downward convective flow of cooler air against the sides of the product containers 57 helps maintain the product containers 57 at a cool temperature.
  • the product containers 57 located in the middle of the product compartment 40, farthest from any refrigerant bricks or frozen bricks, can be maintained within an acceptable temperature range. Even product containers 57 at the corners of the payload 56 which are most susceptible to increases in temperature (when the ambient temperature is higher than the shipper temperature) can be maintained within an acceptable temperature range.
  • a method of assembling a temperature assured packaging system may comprise the following steps: First, the vertical posts 34 may be pre-glued or otherwise affixed to the inner (product) facing surfaces of the side panels 18 and the end panels 20. The vertical posts 34 should be shorter than the side panels 18 and end panels 20 so that their open ends will be spaced from the top panel 16 and the bottom panel 14.
  • the housing 12 may be assembled by first placing the bottom panel 14 into the bottom tray 22, then inserting a side panel 18 and both end panels 20 into the bottom tray 22 between the bottom tray side walls 24 and the bottom panel 14 to form the three sided enclosure shown in Figure 6 .
  • the top and front of the housing 12 are left open so that the interior contents may be loaded.
  • the first item loaded into the product compartment 40 is the spacer 26, which is placed on top of the bottom panel 14.
  • the two bottom refrigerant layers 28 are placed onto the spacer 26, typically by arranging multiple refrigerant bricks to form two refrigerant layers 28.
  • a top refrigerant layer 28 is placed on top of the product containers 57, again by arranging multiple refrigerant bricks into a layer.
  • the top three frozen layers 30 are placed on top of the top refrigerant layer 28.
  • the remaining side panel 18 not shown in Figure 6 is wedged between the bottom tray side wall 24 and the bottom panel 14 to form a four sided enclosure.
  • the top panel 16 is placed onto the top rims of the side panels 18 and end panels 20 to form the six sided outer housing 12.
  • Optional corner boards 54 may be glued or otherwise affixed to the edges of the housing 12.
  • a method of maintaining a payload within a desired temperature range may comprise the following steps:
  • Figure 7 is a partial cutaway perspective view of an alternative example of a portion of a packaging system not being part of the invention.
  • the packaging system 70 may comprise a housing 72 comprising a bottom panel 74 (shown partially in Figure 7 ), a top panel (not shown), side panels 78 and end panels 80 extending vertically between the bottom panel 74 and the top panel.
  • the housing 72 defines a product compartment 82 for holding a payload (not shown).
  • the packaging system 70 may comprise one or more bottom cooling layers located between the bottom panel 74 and the payload and one or more top cooling layers located between the payload and the top panel.
  • the packaging system 70 shown in Figure 7 comprises channel members 84 to facilitate convective air circulation within the product compartment 82.
  • Each channel member 84 may be adhered or otherwise affixed to one of the side panels 78 or end panels 80.
  • Each channel member 84 has an open top end 86 and an open bottom end 88 and defines a plurality of vertical channels 90, 91 within the channel member 84.
  • the packaging system 70 comprises four channel members 84, with one channel member 84 affixed to each of the side panels 78 and end panels 80.
  • Figure 8 is a cross-sectional view of the embodiment of Figure 7 taken along line 8-8, showing a channel member 84 affixed to a side panel 78.
  • the channel member 84 may be made of folded and glued corrugated board, and may comprise an inner facing panel 92 and an outer facing panel 94 connected by side panels 96 to define an interior space 97.
  • the flutes in the corrugated board may run horizontally to enable more precise folding.
  • the channel member 84 may be at least one inch deep as measured from the inner facing panel 92 to the outer facing panel 94, and preferably between one and one and one-half inches deep.
  • the channel member 84 may include an outer layer 99 of paperboard or similar material wrapped around the inner facing panel 92, outer facing panel 94 and side panels 96.
  • One or more internal panels 98 are disposed within the interior space 97 and extend between the inner facing panel 92 and the outer facing panel 94 and the top end 86 and bottom end 88 of the channel member 84.
  • the one or more internal panels 98 is a single internal panel 98 folded in accordion fashion.
  • the internal panel 98 is folded along vertical inner fold lines 100 which define inner apexes 100 and along vertical outer fold lines 102 which define outer apexes 102.
  • the inner apexes 100 contact the inner facing panel 92 and the outer apexes 102 contact the outer facing panel 94.
  • the inner facing panel 92, the outer facing panel 94 and the internal panel 98 define a series of alternating inner channels 90 and outer channels 91 which function as substantially vertical flow paths that alternate between upward flow and downward flow.
  • the channel member 84 may be thought of as comprising a plurality of adjacent, laterally arranged, inner and outer tubes 104, 106 having a triangular cross sectional shape, with each adjacent pair of inner and outer tubes 104, 106 sharing a common wall 108.
  • Each inner tube 104 has a triangular cross sectional profile and comprises an inner facing base 106 and two angled sides 108.
  • the inner facing base 108 extends from one inner apex 100 to an adjacent inner apex 100 and is part of the channel member inner facing panel 92.
  • the angled sides 108 extend from adjacent inner apexes 100 to a common outer apex 102.
  • Each outer tube 110 has a triangular cross sectional profile and comprises an outer facing base 112 and two angled sides 108 which it shares with two inner tubes 104.
  • the outer facing base 112 extends from one outer apex 102 to an adjacent outer apex 102 and is part of the channel member outer facing panel 94.
  • the angled sides 108 extend from different outer apexes 102 to a common inner apex 100.
  • the outer base 112 is adjacent the housing 72 in the assembled packaging system 70.
  • the inner tubes 104 and the outer tubes 110 define a series of alternating inner channels 90 and outer channels 91 which function as substantially vertical flow paths that alternate between upward flow and downward flow as indicated by the arrows in Figure 7 . It is believed that, in a fashion similar to that of the previous embodiment, warm air rises through the outer channels 91 until the air exits the channel members 84 and is cooled by the top cooling layers. The relatively denser cooled air then falls through the inner channels 90.
  • the shape and configuration of the channel members 84 should be optimized to allow air to flow through the channel members.
  • Figure 9 is a partial cutaway perspective view of an embodiment of a portion of a packaging system according to the invention.
  • the packaging system 120 may comprise a housing 72 comprising a bottom panel 74 (shown partially in Figure 9 ), a top panel (not shown), side panels 78 and end panels 80 extending vertically between the bottom panel 74 and the top panel.
  • the housing 72 defines a product compartment 82 for holding a payload (not shown).
  • the packaging system 120 may comprise one or more bottom cooling layers located between the bottom panel 74 and the payload and one or more top cooling layers located between the payload and the top panel.
  • the packaging system 120 comprises channel members 124 adhered or otherwise affixed to one of the side panels 78 or end panels 80.
  • Each channel member 124 has an open top end 126 and an open bottom end 128 and defines a plurality of large outer channels 130 and small inner channels 132.
  • the packaging system 120 comprises four channel members 124, with one channel member 124 affixed to each of the side panels 78 and end panels 80, although only one channel member 124 is shown in the figure.
  • Figure 10 is a close-up view of a portion of the packaging system 120 of Figure 9 .
  • the channel member 124 may comprise a plurality of corrugated structures, folded and glued together.
  • the channel member 124 may include an outer layer of paperboard or similar material wrapped around the corrugated structures.
  • the channel member 124 defines a series of adjacent, laterally spaced outer channels 130 having a rectangular cross section and designed to carry warmed air upward and a series of adjacent, laterally spaced inner channels 132 having a rectangular cross section and designed to carry cooled air downward.
  • the outer channels 130 may be larger in cross sectional area than the inner channels 132.
  • each outer channel 130 may have a lateral dimension (width) (i.e., the dimension parallel to the wall to which the channel member 124 is attached) that is greater than the lateral dimension of each inner channel 132.
  • each outer channel 130 may have a width that is twice the width of each inner channel 132.
  • the depth of each outer channel 130 i.e., the dimension perpendicular to the wall to which the channel member 124 is attached) may be the same as the depth of each inner channel 132.
  • the packaging system 10 may be used to package and ship temperature sensitive products. Typically these products have a specified or required temperature range that must be maintained during a specific shipping duration and while the packaging system is subject to various ambient temperature conditions. For example, a product may be expected to be shipped for 120 hours and be exposed to ambient temperatures of between 30C and 45C (86F and 113F), but have a temperature tolerance of between 0 C and 15 C (32F and 59F). A packaging system according to the present disclosure may be designed to accommodate these requirements.
  • the packaging system may be used in any industry where temperature sensitive products are shipped, including but not limited to the pharmaceutical and food industries.
  • the packaging system is particularly useful where the user (e.g., the product manufacturer) desires a packaging system having no side refrigerants that can be shipped long distances, including from continent to continent.
  • the use of present packaging system can supplant the use of multiple smaller parcel shipments.
  • the packaging system 10 can accommodate a full pallet load of products or product containers 57. Accordingly, a typical packaging system 10 may be about 1219,2 mm (48 inches) wide by 1219,2 mm (48 inches ) deep by 1422,4 mm (56 inches) tall. The packaging system 10 may be placed on a wooden or other type of pallet and moved with a forklift truck.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
EP19159959.6A 2015-03-18 2016-03-18 Convection based temperature assured packaging system Active EP3508434B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14/661,478 US9573754B2 (en) 2012-09-26 2015-03-18 Convection based temperature assured packaging system
EP16765832.7A EP3233648B1 (en) 2015-03-18 2016-03-18 Convection based temperature assured packaging system
PCT/US2016/023163 WO2016149627A1 (en) 2015-03-18 2016-03-18 Convection based temperature assured packaging system

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP16765832.7A Division EP3233648B1 (en) 2015-03-18 2016-03-18 Convection based temperature assured packaging system
EP16765832.7A Division-Into EP3233648B1 (en) 2015-03-18 2016-03-18 Convection based temperature assured packaging system

Publications (2)

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EP3508434A1 EP3508434A1 (en) 2019-07-10
EP3508434B1 true EP3508434B1 (en) 2022-03-09

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EP19159959.6A Active EP3508434B1 (en) 2015-03-18 2016-03-18 Convection based temperature assured packaging system

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EP (2) EP3233648B1 (es)
AU (1) AU2016232755C1 (es)
ES (2) ES2732775T3 (es)
SG (1) SG11201706988VA (es)
WO (1) WO2016149627A1 (es)

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US11511928B2 (en) 2017-05-09 2022-11-29 Cold Chain Technologies, Llc Shipping system for storing and/or transporting temperature-sensitive materials
WO2018208986A1 (en) 2017-05-09 2018-11-15 Cold Chain Technologies, Inc. Shipping system for storing and/or transporting temperature-sensitive materials

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688023A (en) * 1926-04-24 1928-10-16 Glacifer Company Refrigerating unit
US2325371A (en) * 1941-08-23 1943-07-27 Leonard F Clerc Refrigerated shipping container
US2632311A (en) * 1947-07-25 1953-03-24 Frozen Food Foundation Inc Insulated container for delivery of frozen foods
US2533773A (en) * 1949-07-16 1950-12-12 Ottawa River Paper Company Ventilated corrugated board container
KR100360780B1 (ko) * 2000-07-28 2002-11-18 변무원 빙축열 탱크
WO2004029525A1 (en) * 2002-09-28 2004-04-08 Maersk Container Industri As Temperature control apparatus
WO2004071885A2 (en) * 2003-02-13 2004-08-26 Martin Marietta Materials, Inc. Insulated cargo containers
US20060174648A1 (en) * 2005-01-26 2006-08-10 Gary Lantz Insulated shipping container and method
US20110248038A1 (en) * 2010-04-09 2011-10-13 Minnesota Thermal Science, Llc Passive thermally controlled bulk shipping container
US9513067B2 (en) * 2012-09-26 2016-12-06 Sonoco Development, Inc. Convection based temperature assured packaging system
US9873547B2 (en) * 2013-03-15 2018-01-23 Tippmann Companies Llc Heat transfer system for warehoused goods

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ES2913001T3 (es) 2022-05-30
AU2016232755B2 (en) 2018-11-15
EP3508434A1 (en) 2019-07-10
EP3233648B1 (en) 2019-04-17
EP3233648A4 (en) 2018-10-10
ES2732775T3 (es) 2019-11-25
AU2016232755A1 (en) 2017-08-03
AU2016232755C1 (en) 2019-07-25
SG11201706988VA (en) 2017-09-28
WO2016149627A1 (en) 2016-09-22
EP3233648A1 (en) 2017-10-25

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