+

WO2008137528A2 - Emballage pour réchauffer un produit alimentaire - Google Patents

Emballage pour réchauffer un produit alimentaire Download PDF

Info

Publication number
WO2008137528A2
WO2008137528A2 PCT/US2008/062192 US2008062192W WO2008137528A2 WO 2008137528 A2 WO2008137528 A2 WO 2008137528A2 US 2008062192 W US2008062192 W US 2008062192W WO 2008137528 A2 WO2008137528 A2 WO 2008137528A2
Authority
WO
WIPO (PCT)
Prior art keywords
panel
package
central panel
foldably connected
tray
Prior art date
Application number
PCT/US2008/062192
Other languages
English (en)
Other versions
WO2008137528A3 (fr
Inventor
Michael D. Sweet
Original Assignee
Graphic Packaging International, 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
Application filed by Graphic Packaging International, Inc. filed Critical Graphic Packaging International, Inc.
Priority to EP08747324A priority Critical patent/EP2139788A4/fr
Priority to CA002684507A priority patent/CA2684507A1/fr
Publication of WO2008137528A2 publication Critical patent/WO2008137528A2/fr
Publication of WO2008137528A3 publication Critical patent/WO2008137528A3/fr
Priority to US12/580,463 priority patent/US20100051675A1/en

Links

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
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2014—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form the central panel having a non rectangular shape
    • B65D5/2028—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form the central panel having a non rectangular shape triangular
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/64—Lids
    • B65D5/66—Hinged lids
    • B65D5/6626—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank
    • B65D5/665—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank the lid being held in closed position by self-locking integral flaps or tabs
    • B65D5/667—Lids in the form of an inverted tray
    • 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
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3472—Aluminium or compounds thereof
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3474—Titanium or compounds thereof
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3477—Iron or compounds thereof
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3479—Other metallic compounds, e.g. silver, gold, copper, nickel
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3489—Microwave reflector, i.e. microwave shield
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3494—Microwave susceptor
    • B65D2581/3498—Microwave susceptor attached to the base surface
    • 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
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/30—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D2585/36—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for biscuits or other bakery products
    • B65D2585/363—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for biscuits or other bakery products specific products
    • B65D2585/366—Pizza

Definitions

  • the present disclosure generally relates to packages for holding and/or heating food products.
  • Cartons, constructs, or packages, such as paperboard packages, for holding food products such as frozen pizzas are known.
  • the packages typically are square-shaped and are closed at the top, bottom, sides, front, and back to form a six-sided, fully enclosed package that contains the pizza and provides surface areas for printing graphics such as advertisements or nutritional information. It is desired to provide a package that is both suitable for holding one or more food products prior to preparation of the food product, and for holding the food product during heating in an oven, such as a microwave oven. Furthermore, and depending upon the circumstances, it may be desired to provide a package that enhances the heating, browning, and/or crisping of the food products in a microwave oven.
  • the disclosure is generally directed to a package for holding a food product.
  • the package comprises a first central panel, an end panel foldably connected to the first central panel, and a second central panel foldably connected to the end panel.
  • At least one first side panel is foldably connected to the first central panel and at least one second side panel is foldably connected to the second central panel.
  • the at least one second side panel comprises an opening.
  • a retention flap is foldably connected to the at least one first side panel.
  • the retention flap comprises a locking portion shaped to be received in the opening to retain the first central panel in a closed position of the package.
  • the disclosure is generally directed to a blank for forming a package for holding a food product.
  • the blank comprises a first central panel, an end panel foldably connected to the first central panel, and a second central panel foldably connected to the end panel.
  • At least one first side panel is foldably connected to the first central panel, and at least one second side panel is foldably connected to the second central panel.
  • a retention flap is foldably connected to the first side panel.
  • Retention features comprise a locking portion of the retention flap and an opening in the at least one second side panel. The locking portion is shaped to be received in the opening and retain the first central panel in a closed position of the package formed from the blank.
  • the disclosure is generally directed to a method of forming a package from a blank.
  • the method comprises providing a blank comprising a first central panel, an end panel foldably attached to the first central panel, and a second central panel foldably attached to the end panel.
  • the blank has at least two first side panels foldably attached to the first central panel, and at least two second side panels foldably attached to the second central panel.
  • a retention flap is foldably attached to at least one of the first side panels.
  • the blank has retention features comprising a locking portion of the retention flap and an opening in at least one of the second side panels.
  • the method further comprising upwardly folding the first side panels relative to the first central panel to from a first tray, upwardly folding the second side panels relative to the second central panel to form a second tray, downwardly folding the retention flap, folding the second tray over the first tray, and securing the second tray in a closed position of the package by actuating the retention features of the blank.
  • Actuating the retention features comprises inserting the locking portion of the retention flap in the opening.
  • the disclosure is generally directed to a package for holding a food product.
  • the package comprises a first tray comprising a first central panel and at least two first side panels foldably connected to the first central panel.
  • the package comprises a second tray comprising a second central panel and at least two second side panels foldably connected to the second central panel.
  • An end panel is foldably connected to the first tray and the second tray.
  • a retention flap is foldably attached to at least one of the first side panels.
  • Retention features of the package comprise a locking portion of the retention flap and an opening in one of the second side panels. The locking portion is shaped to be received in the opening and retain the second tray in a closed position.
  • Fig. 1 is a plan view of an exterior side of a blank used to form a package according to a first embodiment of the disclosure.
  • Fig. 2 is a plan view of an interior side of the blank.
  • FIGs. 3 and 4 are perspectives of the package in a partially assembled condition.
  • Fig. 5 is a perspective of the package.
  • the package of the present disclosure is particularly useful in containing a food product such as a piece of a frozen pizza during storage of the pizza prior to consumption. Further, the package of the present disclosure can be used for heating, cooking, browning, crisping, etc. the food product by use of a heating or cooking device such as a microwave oven. It is understood that food products other than pizza may be contained in the package. Further, food products contained in this package may be generally triangular, round, square, rectangular, or any other shape. In this specification, the terms “lower,” “bottom,” “upper” and “top” indicate orientations determined in relation to fully erected and upright packages.
  • Fig. 1 is a plan view of an exterior side 1 of a blank, generally indicated at 3, used to form a package 5 (Fig. 5) according to the exemplary embodiment of the disclosure.
  • the package 5 can be used to house a food product (e.g., a slice of pizza, not shown).
  • the package 5 is shaped to hold a single serving of pizza, which may be referred to herein as a slice, but the package could be otherwise shaped to hold correspondingly shaped food products.
  • the package 5 and blank 3 may be alternatively sized, shaped and/or otherwise arranged to hold any number of food products including a single food product or more than two food products.
  • the package 5 is sized to hold a triangular slice of pizza but the package may be otherwise sized and shaped for holding one or more servings of pizzas.
  • the package 5 is particularly useful for holding the food product during storage in a freezer, during heating and/or cooking in a microwave oven (not shown), and/or during serving or consumption of the cooked food product.
  • the blank 3 has a longitudinal axis Ll and a lateral axis L2.
  • the blank 3 comprises a first central panel 10 foldably connected to a first side panel 20 at a first oblique fold line 21 and foldably connected to a second side panel 30 at a second oblique fold line 31.
  • the first side panel 20 is foldably connected to a retention flap 36 at an oblique fold line 37.
  • a notch 41 in the form of a cut or slit extends between two portions of the oblique fold line 37 and at least partially defines a locking portion 47 of the retention flap 36.
  • the notch 41 has two transverse end portions 43 and an elongate portion 45 generally parallel to and spaced laterally inward from the fold line 37.
  • the notch 41 at least partially forms a retention feature of the blank in the form of the locking portion 47 of the retention flap 36.
  • the second side panel 30 has a corner tab 51 foldably attached to the side panel at an oblique fold line 53.
  • the first central panel 10 is foldably connected to an end panel
  • a first end tab 61 is foldably connected to the end panel 57 at a first oblique fold line 63, and a second end tab 67 is foldably connected to the end panel at a second oblique fold line 69.
  • a second central panel 71 is foldably connected to the end panel 57 at a lateral fold line 75.
  • the second central panel 71 is foldably connected to a first side panel 77 at a first oblique fold line 19 and is foldably connected to a second side panel 81 at a second oblique fold line 83.
  • the first side panel 77 has an elongate opening or slot 87 (e.g., cutout) generally parallel to and extending between portions of the fold line 79.
  • the elongate opening 87 comprises two generally parallel edges 86, 88 and two rounded edges 90, 94 connecting the parallel edges.
  • the opening 87 is positioned at a location corresponding with a top edge of the second panel.
  • the edge 86 of the opening 87 is in the first side panel 77 and the edge 88 of the opening is in the second central panel 71.
  • the rounded edges 90, 94 respectively extend from the edge 88 in the second central panel 71 to the edge 86 in the first side panel 77.
  • a corner tab 89 is foldably connected to the second side panel 81 at an oblique fold line 91.
  • the first side panel 77 and second side panel 81 each have a notch 92, 93 in a respective edge of the side panel.
  • the notches 92, 93 are in respective longitudinal edges of the side panels 77, 81 and are generally aligned in the longitudinal direction of the blank.
  • the first central panel 10 includes at least one microwave energy interactive element 109 (Fig. 2) attached thereto (e.g., covering at least a portion of the interior surface of the first central panel of the blank 3).
  • the microwave energy interactive element 109 may comprise a susceptor for becoming hot when exposed to microwave energy, although other types and various combinations of microwave energy interactive elements are also within the scope of the present disclosure, as will be discussed below.
  • the blank 3 may include other microwave energy interactive elements overlying one or more other panels, for example, the second central panel 71, and/or one or more of the side panels 20, 30, 77, 81 and end panel 57. It also will be understood that the microwave energy interactive element 109 may be omitted from the blank 3 without departing from the scope of this disclosure.
  • the elongate opening 87 has a length L3 and a width Wl
  • the retention flap 47 has a length L4.
  • the length L3 is at least approximately 2.4 inches (61 mm)
  • the width Wl is at least approximately 1/8 inch (3.0 mm)
  • the length L4 is approximately 2-1/4 inches (57 mm).
  • the dimensional information listed herein is intended to be exemplary only and is not intended to limit the scope of the disclosure. Further, the blank 3 may have dimensions other than listed herein without departing from the disclosure.
  • the blank 3 can be erected into the package 5 by first folding along fold lines 21, 31, 79, 83 to upwardly fold the side panels 20, 30, 77, 81 relative to the first and second central panels 10, 71.
  • the corner tabs 51, 89 are respectively inwardly folded along fold lines 53, 91 so as to be in generally face-to-face contact with a respective inner surface of an opposite side panel 20, 77.
  • the corner tabs 51, 89 may be respectively adhesively attached to one of the side panels 20, 77 by an adhesive such as glue.
  • the retention flap 36 is inwardly folded relative to the side panel 20 so that the retention flap is generally parallel to the first central panel 10 and the locking portion 47 is struck from and protrudes in a generally horizontal direction relative to the side panel 20.
  • the locking portion 47 of the retention flap 36 is located at the top edge of the side panel 20 at a height corresponding to the location of the oblique fold line 37.
  • the upwardly folded side panels 21, 30, 77, 81 and inwardly folded corner tabs 51, 89 form generally opposed, triangular trays (e.g., first tray 113 and second tray 111) that are foldably connected to opposite sides of the end panel 57. As shown in Fig.
  • the second tray 111 is folded over the first tray 113, generally in the direction of arrow Al, by folding along fold lines 59, 75 so that the end panel 57 is in a generally vertical position.
  • the second tray 111 is further folded in the direction of arrow Al so that the side panels 77, 81 overlap and are in generally face-to-face contact with the side panels 20, 30 of the first tray 113 to close the package 5.
  • the locking portion 47 of the retention flap 36 is received in the elongate slot 87 to secure the package 5 in the closed position.
  • the retention features of the blank releasably secure the second tray 111 in the closed position covering the first tray 113.
  • the retention features may be positioned differently.
  • the locking portion 47 may be positioned where the elongate slot 87 is shown, and the elongate slot 87 may be positioned where the flap 47 is shown.
  • the first tray 113 may be arranged to be lowered over the second tray 11 1 to secure the package 5 in the closed position. Food product may be placed in the package 5 (e.g., in the first tray 113) at any point in the closing process.
  • Adhesive such as glue may be applied to one or more of the corner tabs 51, 89, end tabs 61, 67, and side panels 20, 30, 77, 81 to secure the second tray 111 in the closed position covering the first tray 113. Further, an overwrap of plastic material or other securement methods may be used to secure the second tray 111 in the closed position covering the first tray 113.
  • the package is opened by raising the second tray 111 from the closed position and the food product is removed from the package and prepared for heating.
  • the second tray 111 may be grasped by the notches 92, 93 in the side panels 77, 81 and raised to allow access to the food product in the package 5.
  • the food product may be a frozen pizza slice that has a protective overwrap of plastic film or any other suitable material that is removed from the pizza before heating.
  • the unwrapped pizza is placed in the first tray 113 against the microwave energy interactive element 109 on the first central panel 10.
  • the second tray 1 11 can be closed in the manner discussed above and the package 5 placed in a microwave oven for heating the pizza. After heating, the pizza may be removed from the package 5 by opening the package in a similar manner as discussed above. Alternatively, the overwrap may be omitted or it may cover the exterior of the package 5.
  • the package 5 may be used in a similar manner to heat and/or cook a second food product that was originally packaged in the package. Further, the package 5 may be used to reheat portions of previously cooked pizzas, or the package may be used to heat food products other than the pizzas originally packaged in the package, without departing from the scope of this disclosure.
  • the package 5 can be used as a serving plate for serving the cooked or heated pizza slice.
  • the second tray 111 can be removed by tearing along fold line 75 (which may be formed as a tear line) leaving the first tray 113 and end panel 57 forming a serving tray for holding the cooked pizza slice. Furthermore, the second tray 111 can be removed from the package 5 before heating the pizza slice in the microwave oven without departing from this disclosure.
  • microwave energy interactive elements may be suitable for use with the package 5 of the disclosure.
  • the microwave energy interactive elements 109 may promote browning and/or crisping of a particular area of the food item, shield a particular area of the food item from microwave energy to prevent overcooking thereof, or transmit microwave energy towards or away from a particular area of the food item.
  • microwave interactive element comprises one or more microwave energy interactive materials or segments arranged in a particular configuration to absorb microwave energy, transmit microwave energy, reflect microwave energy, or direct microwave energy, as needed or desired for a particular construct and food item.
  • the microwave interactive element may be supported on a microwave inactive or transparent substrate for ease of handling and/or to prevent contact between the microwave interactive material and the food item.
  • a microwave interactive element supported on a microwave transparent substrate includes both microwave interactive and microwave inactive elements or components, such constructs are referred to herein as "microwave interactive webs".
  • the microwave energy interactive material may be an electroconductive or semiconductive material, for example, a metal or a metal alloy provided as a metal foil; a vacuum deposited metal or metal alloy; or a metallic ink, an organic ink, an inorganic ink, a metallic paste, an organic paste, an inorganic paste, or any combination thereof.
  • metals and metal alloys that may be suitable for use with the present disclosure include, but are not limited to, aluminum, chromium, copper, inconel alloys (nickel-chromium-molybdenum alloy with niobium), iron, magnesium, nickel, stainless steel, tin, titanium, tungsten, and any combination or alloy thereof.
  • the microwave energy interactive material may comprise a metal oxide.
  • metal oxides that may be suitable for use with the present disclosure include, but are not limited to, oxides of aluminum, iron, and tin, used in conjunction with an electrically conductive material where needed.
  • ITO indium tin oxide
  • ITO can be used as a microwave energy interactive material to provide a heating effect, a shielding effect, a browning and/or crisping effect, or a combination thereof.
  • ITO may be sputtered onto a clear polymeric film.
  • the sputtering process typically occurs at a lower temperature than the evaporative deposition process used for metal deposition.
  • ITO has a more uniform crystal structure and, therefore, is clear at most coating thicknesses. Additionally, ITO can be used for either heating or field management effects. ITO also may have fewer defects than metals, thereby making thick coatings of ITO more suitable for field management than thick coatings of metals, such as aluminum.
  • the microwave energy interactive material may comprise a suitable electroconductive, semiconductive, or non-conductive artificial dielectric or ferroelectric.
  • Artificial dielectrics comprise conductive, subdivided material in a polymeric or other suitable matrix or binder, and may include flakes of an electroconductive metal, for example, aluminum.
  • the microwave interactive element may comprise a thin layer of microwave interactive material that tends to absorb microwave energy, thereby generating heat at the interface with a food item.
  • microwave interactive material that tends to absorb microwave energy, thereby generating heat at the interface with a food item.
  • Such elements often are used to promote browning and/or crisping of the surface of a food item (sometimes referred to as a "browning and/or crisping element").
  • a film or other substrate such an element may be referred to as a "susceptor film” or, simply, "susceptor”.
  • other microwave energy interactive elements such as those described herein, are contemplated hereby.
  • the microwave interactive element may comprise a foil having a thickness sufficient to shield one or more selected portions of the food item from microwave energy (sometimes referred to as a "shielding element").
  • shielding elements may be used where the food item is prone to scorching or drying out during heating.
  • the shielding element may be formed from various materials and may have various configurations, depending on the particular application for which the shielding element is used.
  • the shielding element is formed from a conductive, reflective metal or metal alloy, for example, aluminum, copper, or stainless steel.
  • the shielding element generally may have a thickness of from about 0.000285 inches to about 0.05 inches. In one aspect, the shielding element has a thickness of from about 0.0003 inches to about 0.03 inches. In another aspect, the shielding element has a thickness of from about 0.00035 inches to about 0.020 inches, for example, 0.016 inches.
  • the microwave interactive element may comprise a segmented foil, such as, but not limited to, those described in U.S. Patent Nos.
  • segmented foils are not continuous, appropriately spaced groupings of such segments often act as a transmitting element to direct microwave energy to specific areas of the food item.
  • Such foils also may be used in combination with browning and/or crisping elements, for example, susceptors.
  • any of the numerous microwave interactive elements described herein or contemplated hereby may be substantially continuous, that is, without substantial breaks or interruptions, or may be discontinuous, for example, by including one or more breaks or apertures that transmit microwave energy therethrough.
  • the breaks or apertures may be sized and positioned to heat particular areas of the food item selectively. The number, shape, size, and positioning of such breaks or apertures may vary for a particular application depending on type of construct being formed, the food item to be heated therein or thereon, the desired degree of shielding, browning, and/or crisping, whether direct exposure to microwave energy is needed or desired to attain uniform heating of the food item, the need for regulating the change in temperature of the food item through direct heating, and whether and to what extent there is a need for venting.
  • the aperture may be a physical aperture or void in the material used to form the construct, or may be a non-physical "aperture".
  • a non-physical aperture may be a portion of the construct that is microwave energy inactive by deactivation or otherwise, or one that is otherwise transparent to microwave energy.
  • the aperture may be a portion of the construct formed without a microwave energy active material or, alternatively, may be a portion of the construct formed with a microwave energy active material that has been deactivated. While both physical and non-physical apertures allow the food item to be heated directly by the microwave energy, a physical aperture also provides a venting function to allow steam or other vapors to be released from the food item. It also may be beneficial to create one or more discontinuities or inactive regions to prevent overheating or charring of the package.
  • any of the above elements and numerous others contemplated hereby may be supported on a substrate.
  • the substrate typically comprises for example, a polymer film or other polymeric material.
  • polymer or “polymeric material” includes, but is not limited to, homopolymers, copolymers, such as for example, block, graft, random, and alternating copolymers, terpolymers, etc. and blends and modifications thereof.
  • polymer shall include all possible geometrical configurations of the molecule. These configurations include, but are not limited to isotactic, syndiotactic, and random symmetries.
  • the thickness of the film typically may be from about 35 gauge to about 10 mil. In one aspect, the thickness of the film is from about 40 to about 80 gauge. In another aspect, the thickness of the film is from about 45 to about 50 gauge, In still another aspect, the thickness of the film is about 48 gauge.
  • polymeric films that may be suitable include, but are not limited to, polyolefins, polyesters, polyamides, polyimides, polysulfones, polyether ketones, cellophanes, or any combination thereof.
  • Other non-conducting substrate materials such as paper and paper laminates, metal oxides, silicates, cellulosics, or any combination thereof, also may be used.
  • the polymeric film comprises polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • Polyethylene terephthalate films are used in commercially available susceptors, for example, the QWIKWAVE® susceptor and the MICRORITE® susceptor laminations, both available from Graphic Packaging International (Marietta, Georgia).
  • Examples of polyethylene terephthalate films that may be suitable for use as the substrate include, but are not limited to, MELINEX® films, commercially available from DuPont Teijan Films (Hopewell, Virginia), SKYROL films, commercially available from SKC, Inc.
  • the polymeric film may be selected to impart various properties to the paper or paperboard web, for example, printability, heat resistance, or any other property.
  • the polymeric film may be selected to provide a water barrier, oxygen barrier, or a combination thereof.
  • Such barrier film layers may be formed from a polymer film having barrier properties or from any other barrier layer or coating as desired.
  • Suitable polymer films may include, but are not limited to, ethylene vinyl alcohol, barrier nylon, polyvinylidene chloride, barrier fluoropolymer, nylon 6, nylon 6,6, coextruded nylon 6/EVOH/nylon 6, silicon oxide coated film, barrier polyethylene terephthalate, or any combination thereof.
  • barrier film that may be suitable for use with the present disclosure is CAPRAN® EMBLEM 1200M nylon 6 film, commercially available from Honeywell International (Pottsville, Pennsylvania).
  • Another example of a barrier film that may be suitable is CAPRAN® OXYSHIELD OBS monoaxially oriented coextruded nylon 6/ethylene vinyl alcohol (EVOH)/nylon 6 film, also commercially available from Honeywell International.
  • Yet another example of a barrier film that may be suitable for use with the present disclosure is DARTEK® N- 201 nylon 6,6 film, commercially available from Enhance Packaging Technologies (Webster, New York). Additional examples include BARRIALOX PET, available from Toray Films (Front Royal, VA) and QU50 High Barrier Coated PET film, available from Toray Films (Front Royal, VA), referred to above.
  • barrier films include silicon oxide coated films, such as those available from Sheldahl Films (Northfield, Minnesota).
  • a susceptor may have a structure including a film, for example, polyethylene terephthalate, with a layer of silicon oxide coated onto the film, and ITO or other material deposited over the silicon oxide. If needed or desired, additional layers or coatings may be provided to shield the individual layers from damage during processing.
  • the barrier film may have an oxygen transmission rate (OTR) as measured using ASTM D3985 of less than about 20 cc/m2/day. In one aspect, the barrier film has an OTR of less than about 10 cc/m2/day.
  • the barrier film has an OTR of less than about 1 cc/m2/day. In still another aspect, the barrier film has an OTR of less than about 0.5 cc/m2/day. In yet another aspect, the barrier film has an OTR of less than about 0.1 cc/m2/day.
  • the barrier film may have a water vapor transmission rate
  • the barrier film has a water vapor transmission rate of less than about 50 g/m2/day. In another aspect, the barrier film has a WVTR of less than about 15 g/m2/day. In yet another aspect, the barrier film has a WVTR of less than about 1 g/m2/day. In still another aspect, the barrier film has a WVTR of less than about 0.1 g/m2/day. In a still further aspect, the barrier film has a WVTR of less than about 0.05 g/m2/day.
  • non-conducting substrate materials such as metal oxides, silicates, cellulosics, or any combination thereof, also may be used in accordance with the present disclosure.
  • the microwave energy interactive material may be applied to the substrate in any suitable manner, and in some instances, the microwave energy interactive material is printed on, extruded onto, sputtered onto, evaporated on, or laminated to the substrate.
  • the microwave energy interactive material may be applied to the substrate in any pattern, and using any technique, to achieve the desired heating effect of the food item.
  • microwave interactive element or microwave interactive web may be joined to or overlie a dimensionally stable, microwave energy transparent support (hereinafter referred to as "microwave transparent support", “microwave inactive support' " or “support”) to form the construct.
  • microwave transparent support microwave energy transparent support
  • microwave inactive support' or “support”
  • the microwave energy interactive material may be provided as a continuous or discontinuous layer or coating including circles, loops, hexagons, islands, squares, rectangles, octagons, and so forth. Examples of various patterns and methods that may be suitable for use with the present disclosure are provided in U.S. Patent Nos.
  • the support may be formed at least partially from a paperboard material, which may be cut into a blank prior to use in the construct.
  • the support may be formed from paperboard having a basis weight of from about 60 to about 330 lbs/ream (i.e., lbs/3,000 ft 2 ), for example, from about 80 to about 140 lbs/ream.
  • the paperboard generally may have a thickness of from about 6 to about 30 mils, for example, from about 12 to about 28 mils.
  • the paperboard has a thickness of about 18 mils and a basis weight of from about 100 lbs/ream to about 300 lbs/ream.
  • Any suitable paperboard may be used, for example, a solid bleached or solid unbleached sulfate board, such as SUS® board, commercially available from Graphic Packaging International.
  • the blanks or other constructs may be coated with, for example, a moisture and/or oxygen barrier layer, on either or both sides, such as those described above.
  • a moisture and/or oxygen barrier layer on either or both sides, such as those described above.
  • Any suitable moisture and/or oxygen barrier material may be used in accordance with the present disclosure. Examples of materials that may be suitable include, but are not limited to, polyvinylidene chloride, ethylene vinyl alcohol, DuPont DARTEKTM nylon 6,6 film, and others referred to above.
  • any of the blanks or other constructs of the present disclosure may be coated or laminated with other materials to impart other properties, such as absorbency, repellency, opacity, color, printability, stiffness, or cushioning.
  • absorbent susceptors are described in U.S. Provisional Application No. 60/604,637, filed August 25, 2004, and U.S. Patent Application No. 11/21 1,858, to Middleton, et al., titled "Absorbent Microwave Interactive Packaging", filed August 25, 2005, both of which are incorporated herein by reference in their entirety.
  • the blanks or other constructs may include graphics or indicia printed thereon.
  • the microwave interactive element may have a grey or silver color that is visually distinguishable from the substrate or the support.
  • the present disclosure contemplates using a silver or grey toned adhesive to join the microwave interactive elements to the substrate, using a silver or grey toned substrate to mask the presence of the silver or grey toned microwave interactive element, using a dark toned substrate, for example, a black toned substrate, to conceal the presence of the silver or grey toned microwave interactive element, overprinting the metallized side of the web with a silver or grey toned ink to obscure the color variation, printing the non-metallized side of the web with a silver or grey ink or other concealing color in a suitable pattern or as a solid color layer to mask or conceal the presence of the microwave interactive element, or any other suitable technique or combination thereof.
  • the microwave interactive element may comprise a microwave energy interactive insulating material.
  • microwave energy interactive insulating material or “insulating material” refers any combination of layers of materials that is both responsive to microwave energy and capable of providing some degree of thermal insulation when used to heat a food item.
  • the insulating material may include various components, provided that each is resistant to softening, scorching, combusting, or degrading at typical microwave oven heating temperatures, for example, at about 250 0 F.
  • the insulating material may include both microwave energy responsive or interactive components, and microwave energy transparent or inactive components.
  • the insulating material may comprise one or more susceptor layers in combination with one or more expandable insulating cells.
  • the insulating material may include one or more microwave energy transparent or inactive materials to provide dimensional stability, to improve ease of handling the microwave energy interactive material, and/or to prevent contact between the microwave energy interactive material and the food item.
  • the microwave energy interactive insulating material comprises a microwave energy interactive material supported on a first polymeric film layer, a moisture-containing layer superposed with the microwave energy interactive material and a second polymeric film layer joined to the moisture-containing layer in a predetermined pattern, thereby forming one or more closed cells between the moisture-containing layer and the second polymeric film layer.
  • the closed cells expand or inflate in response to being exposed to microwave energy, and thereby causing microwave energy interactive material to bulge and deform toward the food product. In doing so, the heat generated by the microwave energy interactive material is transferred to the food product more readily. Additional benefits and aspects of such materials are described in PCT Application No. PCT/US03/03779, U.S. Application No. 10/501,003, and U.S. Application No. 11/314,851, each of which is incorporated by reference herein in its entirety.
  • the blank according to the present disclosure can be, for example, formed from coated paperboard and similar materials.
  • the interior and/or exterior sides of the blank can be coated with a clay coating.
  • the clay coating may then be printed over with product, advertising, price coding, and other information or images.
  • the blank may then be coated with a varnish to protect any information printed on the blank.
  • the blank may also be coated with, for example, a moisture barrier layer, on either or both sides of the blank.
  • the blank may be constructed of paperboard of a caliper such that it is heavier and more rigid than ordinary paper.
  • the blank can also be constructed of other materials, such as cardboard, hard paper, or any other material having properties suitable for enabling the package to function at least generally as described herein.
  • the blank can also be laminated or coated with one or more sheet- like materials at selected panels or panel sections.
  • a fold line can be any substantially linear, although not necessarily straight, form of weakening that facilitates folding therealong. More specifically, but not for the purpose of narrowing the scope of the present disclosure, fold lines may include: a score line, such as lines formed with a blunt scoring knife, or the like, which creates a crushed portion in the material along the desired line of weakness; a cut that extends partially into a material along the desired line of weakness, and/or a series of cuts that extend partially into and/or completely through the material along the desired line of weakness; and various combinations of these features.
  • a score line such as lines formed with a blunt scoring knife, or the like, which creates a crushed portion in the material along the desired line of weakness
  • a cut that extends partially into a material along the desired line of weakness, and/or a series of cuts that extend partially into and/or completely through the material along the desired line of weakness; and various combinations of these features.
  • the above embodiments may be described as having one or more panels adhered together by glue during erection of the package embodiments.
  • glue is intended to encompass all manner of adhesives commonly used to secure package panels in place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Cookers (AREA)

Abstract

La présente invention concerne un emballage servant à contenir un produit alimentaire. Cet emballage comprend un premier panneau central, un panneau d'extrémité relié par pli au premier panneau central, et un deuxième panneau central relié par pli au panneau d'extrémité. Un premier panneau latéral au moins, qui est relié au premier panneau central, comporte une ouverture. Un deuxième panneau latéral au moins est relié par pli au deuxième panneau central. Une languette de retenue est reliée par pli au deuxième panneau latéral. La languette de retenue comporte une partie verrouillante dont la forme est conçue pour la recevoir dans l'ouverture et pour retenir le premier panneau en position de fermeture de l'emballage.
PCT/US2008/062192 2007-05-01 2008-05-01 Emballage pour réchauffer un produit alimentaire WO2008137528A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08747324A EP2139788A4 (fr) 2007-05-01 2008-05-01 Emballage pour réchauffer un produit alimentaire
CA002684507A CA2684507A1 (fr) 2007-05-01 2008-05-01 Emballage pour rechauffer un produit alimentaire
US12/580,463 US20100051675A1 (en) 2007-05-01 2009-10-16 Package for heating a food product

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91514207P 2007-05-01 2007-05-01
US60/915,142 2007-05-01

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/580,463 Continuation US20100051675A1 (en) 2007-05-01 2009-10-16 Package for heating a food product

Publications (2)

Publication Number Publication Date
WO2008137528A2 true WO2008137528A2 (fr) 2008-11-13
WO2008137528A3 WO2008137528A3 (fr) 2008-12-24

Family

ID=39944200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/062192 WO2008137528A2 (fr) 2007-05-01 2008-05-01 Emballage pour réchauffer un produit alimentaire

Country Status (4)

Country Link
US (1) US20100051675A1 (fr)
EP (1) EP2139788A4 (fr)
CA (1) CA2684507A1 (fr)
WO (1) WO2008137528A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8814033B2 (en) 2009-11-16 2014-08-26 Graphic Packaging International, Inc. Triangular vented tray
USD842095S1 (en) 2017-10-10 2019-03-05 Graphic Packaging International, Llc Carton
US10661940B2 (en) 2017-09-06 2020-05-26 Graphic Packaging International, Llc Carton with at least one holder
USD899246S1 (en) 2019-04-24 2020-10-20 Graphic Packaging International, Llc Carton
US11059621B2 (en) 2018-08-06 2021-07-13 Graphic Packaging International, Llc Container with at least one compartment
US11440697B2 (en) 2019-02-28 2022-09-13 Graphic Packaging International, Llc Carton for a food product
USD999055S1 (en) 2020-10-29 2023-09-19 Graphic Packaging International, Llc Carton

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2139787A4 (fr) * 2007-05-01 2011-05-25 Graphic Packaging Int Inc Emballage pour réchauffer un produit alimentaire
US9078296B2 (en) * 2011-06-08 2015-07-07 Graphic Packaging International, Inc. Tray with curved bottom surface
ES2922180T3 (es) 2013-07-25 2022-09-09 Graphic Packaging Int Llc Caja de cartón para un producto alimenticio
US10232973B2 (en) 2014-11-07 2019-03-19 Graphic Packaging International, Llc Tray for holding a food product
US10336500B2 (en) 2014-11-07 2019-07-02 Graphic Packaging International, Llc Tray for holding a food product
WO2022098865A1 (fr) 2020-11-06 2022-05-12 Graphic Packaging International, Llc Plateau pour produits alimentaires
USD1042122S1 (en) 2021-05-27 2024-09-17 Graphic Packaging International, Llc Tray
USD1042116S1 (en) 2021-05-27 2024-09-17 Graphic Packaging International, Llc Carton
USD1042119S1 (en) 2021-05-27 2024-09-17 Graphic Pachaging International, LLC Tray
USD1042121S1 (en) 2021-05-27 2024-09-17 Graphic Packaging International, Llc Tray
USD1042117S1 (en) 2021-05-27 2024-09-17 Graphic Packaging International, Llc Tray
USD1042118S1 (en) 2021-05-27 2024-09-17 Graphic Packaging International, Llc Tray
USD1044494S1 (en) 2021-05-27 2024-10-01 Graphic Packaging International, Llc Tray
USD1062459S1 (en) 2021-05-27 2025-02-18 Graphic Packaging International, Llc Tray
USD1042120S1 (en) 2021-05-27 2024-09-17 Graphic Packaging International, Llc Tray

Family Cites Families (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US34683A (en) * 1862-03-18 Improvement in stoves
US662969A (en) * 1900-01-22 1900-12-04 Henry G Roth Carton or box.
US978569A (en) * 1909-09-17 1910-12-13 Jo P G Elkin Receptacle.
US1667376A (en) * 1926-07-08 1928-04-24 Burd & Fletcher Company Display container
US1651848A (en) * 1927-01-13 1927-12-06 Charles E Stevens Paper box and blank
US1814561A (en) * 1928-08-25 1931-07-14 William L Krumm Box
US1824862A (en) * 1929-12-12 1931-09-29 Pond S Extract Company Dispensing carton
US2100888A (en) * 1936-01-27 1937-11-30 Oscar L Vine Collapsible paper funnel construction
US2107946A (en) * 1936-09-15 1938-02-08 Bloomer Bros Co Carton construction
US2312595A (en) * 1940-11-22 1943-03-02 Chicago Carton Co Display carton
US2363861A (en) * 1943-05-24 1944-11-28 Fibrcboard Products Inc Carton
US2583915A (en) * 1948-06-30 1952-01-29 Mabelle L Dier Collapsible box
US2565146A (en) * 1949-04-06 1951-08-21 Okon Nathan Spacing device for shipping cartons and the like
US2967610A (en) * 1958-02-06 1961-01-10 Kimberly Clark Co Sheet dispensing package
US3107039A (en) * 1961-03-20 1963-10-15 Claude D Painter One piece collapsible and glueless egg carton
US3142430A (en) * 1963-03-15 1964-07-28 American Can Co Carton
US3515331A (en) * 1968-09-09 1970-06-02 Clifton W Guthrie Sr Carton construction
US3907195A (en) * 1974-05-02 1975-09-23 Diamond Int Corp Protective hood for carry-out food and foldable blank therefor
US4039120A (en) * 1976-03-26 1977-08-02 H. Goodman & Sons, Inc. Divisible carton and blank therefor
US4008849A (en) * 1976-05-14 1977-02-22 Boise Cascade Corporation Bidirectional tear strip means for cartons and the like
US4313542A (en) * 1979-07-13 1982-02-02 Champion International Corporation Single-serving pie carton and blank
US4492333A (en) * 1982-08-25 1985-01-08 Champion International Corporation Single slice pie carton with slanted openable rear wall and blank for forming same
US4477014A (en) * 1983-05-04 1984-10-16 Container Corporation Of America Triangular carton and opening means therefor
US4592914A (en) * 1983-06-15 1986-06-03 James River-Dixie/Northern, Inc. Two-blank disposable container for microwave food cooking
US4865921A (en) * 1987-03-10 1989-09-12 James Riker Corporation Of Virginia Microwave interactive laminate
US4775771A (en) * 1987-07-30 1988-10-04 James River Corporation Sleeve for crisping and browning of foods in a microwave oven and package and method utilizing same
US5047710A (en) * 1987-10-07 1991-09-10 Xilinx, Inc. System for scan testing of logic circuit networks
US4798323A (en) * 1987-11-09 1989-01-17 Crane Carton Company Wedge shape carton and blank
US4815609A (en) * 1987-12-21 1989-03-28 Manville Corporation Display carton
CA1292934C (fr) * 1988-05-20 1991-12-10 Donald G. Beckett Materiau de rechauffement et cuisson aux micro-ondes
US5410135A (en) * 1988-09-01 1995-04-25 James River Paper Company, Inc. Self limiting microwave heaters
US4890439A (en) * 1988-11-09 1990-01-02 James River Corporation Flexible disposable material for forming a food container for microwave cooking
GB8827759D0 (en) * 1988-11-28 1988-12-29 Beckett D E Selective microwave heating material-ii
US5519195A (en) * 1989-02-09 1996-05-21 Beckett Technologies Corp. Methods and devices used in the microwave heating of foods and other materials
CA2009207A1 (fr) * 1990-02-02 1991-08-02 D. Gregory Beckett Cuisson controlee des aliments par miro-ondes
US4993625A (en) * 1990-04-04 1991-02-19 Honeymoon Paper Products Tray
US5266386A (en) * 1991-02-14 1993-11-30 Beckett Industries Inc. Demetallizing procedure
US5628921A (en) * 1991-02-14 1997-05-13 Beckett Technologies Corp. Demetallizing procedure
CA2041062C (fr) * 1991-02-14 2000-11-28 D. Gregory Beckett Procede de demetallisation
US5221419A (en) * 1991-02-19 1993-06-22 Beckett Industries Inc. Method for forming laminate for microwave oven package
US5213902A (en) * 1991-02-19 1993-05-25 Beckett Industries Inc. Microwave oven package
US5260537A (en) * 1991-06-17 1993-11-09 Beckett Industries Inc. Microwave heating structure
US5118033A (en) * 1991-11-01 1992-06-02 Kula Gregory R Triangular shaped carton
US5402931A (en) * 1991-11-22 1995-04-04 Gulf States Paper Corporation Carton with lid sealed to tray end flanges and lid flaps sealed to tray sides
GB9201932D0 (en) * 1992-01-29 1992-03-18 Beckett Ind Inc Novel microwave heating structure
GB9219109D0 (en) * 1992-09-09 1992-10-21 Ranks Hovis Mcdougall Plc A container
US5338921A (en) * 1993-02-16 1994-08-16 Universal Packaging Corporation Method of distributing heat in food containers adapted for microwave cooking and novel container structure
US5424517A (en) * 1993-10-27 1995-06-13 James River Paper Company, Inc. Microwave impedance matching film for microwave cooking
US5704483A (en) * 1995-10-26 1998-01-06 Shoreline Container Inc. Folding tray type container
US5800724A (en) * 1996-02-14 1998-09-01 Fort James Corporation Patterned metal foil laminate and method for making same
US5759422A (en) * 1996-02-14 1998-06-02 Fort James Corporation Patterned metal foil laminate and method for making same
DE29613331U1 (de) * 1996-08-01 1996-10-17 Gustav Stabernack GmbH, 36341 Lauterbach Behälter zum Aufbewahren von Kuchenstücken
CA2657193C (fr) * 1996-08-26 2012-04-24 Graphic Packaging International Inc. Conditionnement rechauffable au four a micro-ondes
US6150646A (en) * 1996-08-26 2000-11-21 Graphic Packaging Corporation Microwavable container having active microwave energy heating elements for combined bulk and surface heating
US6102568A (en) * 1996-11-12 2000-08-15 Davis; Heidi Comfort Collapsible, recyclable receptacle
US5707004A (en) * 1997-01-07 1998-01-13 Dopaco, Inc. Carton with offset lock
CA2250434C (fr) * 1997-01-29 2002-11-26 Fort James Corporation Element chauffant a boucles brisees pour four a micro-ondes
US6414290B1 (en) * 1998-03-19 2002-07-02 Graphic Packaging Corporation Patterned microwave susceptor
BR0002972B1 (pt) * 1999-03-12 2009-01-13 recipiente de microondas para produtos alimentÍcios e processo de fabricaÇço do mesmo.
US6204492B1 (en) * 1999-09-20 2001-03-20 Graphic Packaging Corporation Abuse-tolerant metallic packaging materials for microwave cooking
US6433322B2 (en) * 1999-09-20 2002-08-13 Graphic Packaging Corporation Abuse-tolerant metallic packaging materials for microwave cooking
US6695202B2 (en) * 2000-05-18 2004-02-24 Field Container Company, Lp. Disposable food service container
US6440050B1 (en) * 2000-09-19 2002-08-27 Patsy R. Capparelli Method of forming a variable sized and shaped pizza box and apparatus thereof
EP1216926A1 (fr) * 2000-12-06 2002-06-26 Mars B.V. Emballage et procédé d'emballage pour friandises
US6717121B2 (en) * 2001-09-28 2004-04-06 Graphic Packaging International, Inc. Patterned microwave susceptor element and microwave container incorporating same
US20030106926A1 (en) * 2001-12-11 2003-06-12 Beatificato Raymond E. Food carry-out container and integrated detachable coupon package
US6677563B2 (en) * 2001-12-14 2004-01-13 Graphic Packaging Corporation Abuse-tolerant metallic pattern arrays for microwave packaging materials
US8158914B2 (en) * 2002-02-08 2012-04-17 Graphic Packaging International, Inc. Microwave energy interactive heating sheet
US7019271B2 (en) * 2002-02-08 2006-03-28 Graphic Packaging International, Inc. Insulating microwave interactive packaging
US6966483B2 (en) * 2002-04-24 2005-11-22 Manninen Michael W Pizza box apparatus
CA2417290C (fr) * 2003-01-24 2011-11-22 Labatt Brewing Company Limited Carton secondaire pour boissons
US6866189B2 (en) * 2003-04-07 2005-03-15 Caraustar Custom Packaging Retail carton and baking tray
CA2666621C (fr) * 2004-02-09 2011-11-01 Graphic Packaging International, Inc. Conditionnement de cuisson au four a micro-ondes et constitution
ATE507162T1 (de) * 2004-08-25 2011-05-15 Graphic Packaging Int Inc Absorbierende mikrowelleninteraktive verpackung
ATE429390T1 (de) * 2005-01-14 2009-05-15 Graphic Packaging Int Inc Verpackung zum goldbraunen und knusprigen aufbacken teigbasierter lebensmittel in einem mikrowellenherd
US7323699B2 (en) * 2005-02-02 2008-01-29 Rave, Llc Apparatus and method for modifying an object
US7617969B2 (en) * 2005-06-30 2009-11-17 Graphic Packaging International, Inc. Carton capable of carrying take-out food and beverages
USD532690S1 (en) * 2005-06-30 2006-11-28 Graphic Packaging International, Inc. Carton
US7345262B2 (en) * 2005-11-07 2008-03-18 Graphic Packaging International, Inc. Microwave interactive display package
US7414230B2 (en) * 2005-12-08 2008-08-19 Graphic Packaging International, Inc. Package with removable portion
US8063344B2 (en) * 2006-04-27 2011-11-22 Graphic Packaging International, Inc. Microwave energy interactive food package
US7824719B2 (en) * 2006-05-19 2010-11-02 Graphic Packaging International, Inc. Cooking package
BRPI0712450B1 (pt) * 2006-06-30 2019-09-24 Graphic Packaging International, Llc Construção para aquecer, tostar e/ou tornar crocante um item alimentício em um forno de microondas
EP2061703A2 (fr) * 2006-09-12 2009-05-27 Graphic Packaging International, Inc. Carton avec plateau intégré
US8061585B2 (en) * 2007-01-30 2011-11-22 Graphic Packaging International, Inc. Reclosable cartons
EP2139787A4 (fr) * 2007-05-01 2011-05-25 Graphic Packaging Int Inc Emballage pour réchauffer un produit alimentaire
US20080290149A1 (en) * 2007-05-24 2008-11-27 Graphic Packaging International, Inc. Cartons and methods of erecting cartons
ES2511842T3 (es) * 2007-10-03 2014-10-23 Graphic Packaging International, Inc. Elemento tubular de calentamiento por microondas
US7621439B2 (en) * 2007-12-13 2009-11-24 International Paper Co. Container having stackable shelf assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of EP2139788A4 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8814033B2 (en) 2009-11-16 2014-08-26 Graphic Packaging International, Inc. Triangular vented tray
US10661940B2 (en) 2017-09-06 2020-05-26 Graphic Packaging International, Llc Carton with at least one holder
USD842095S1 (en) 2017-10-10 2019-03-05 Graphic Packaging International, Llc Carton
US11059621B2 (en) 2018-08-06 2021-07-13 Graphic Packaging International, Llc Container with at least one compartment
US11440697B2 (en) 2019-02-28 2022-09-13 Graphic Packaging International, Llc Carton for a food product
USD899246S1 (en) 2019-04-24 2020-10-20 Graphic Packaging International, Llc Carton
USD999055S1 (en) 2020-10-29 2023-09-19 Graphic Packaging International, Llc Carton

Also Published As

Publication number Publication date
US20100051675A1 (en) 2010-03-04
EP2139788A2 (fr) 2010-01-06
EP2139788A4 (fr) 2011-05-04
CA2684507A1 (fr) 2008-11-13
WO2008137528A3 (fr) 2008-12-24

Similar Documents

Publication Publication Date Title
US11524830B2 (en) Microwave heating construct
US20100051675A1 (en) Package for heating a food product
US7652233B2 (en) Microwave interactive display package
US20100055260A1 (en) Package for heating a food product
CA2650265C (fr) Emballage de cuisson
CA2729600C (fr) Conditionnement a des fins de cuisson

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08747324

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2008747324

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2684507

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载