GB2397813A - Microwave heatable food packaging - Google Patents

Microwave heatable food packaging Download PDF

Info

Publication number
GB2397813A
GB2397813A GB0229722A GB0229722A GB2397813A GB 2397813 A GB2397813 A GB 2397813A GB 0229722 A GB0229722 A GB 0229722A GB 0229722 A GB0229722 A GB 0229722A GB 2397813 A GB2397813 A GB 2397813A
Authority
GB
United Kingdom
Prior art keywords
panel
lines
support legs
carton
cut
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.)
Granted
Application number
GB0229722A
Other versions
GB0229722D0 (en
GB2397813B (en
Inventor
Oliver Pym
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.)
FRESHBAKE FOODS Ltd
Original Assignee
FRESHBAKE FOODS Ltd
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 FRESHBAKE FOODS Ltd filed Critical FRESHBAKE FOODS Ltd
Priority to GB0604949A priority Critical patent/GB2420776A/en
Priority to GB0229722A priority patent/GB2397813B/en
Publication of GB0229722D0 publication Critical patent/GB0229722D0/en
Publication of GB2397813A publication Critical patent/GB2397813A/en
Application granted granted Critical
Publication of GB2397813B publication Critical patent/GB2397813B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/52—External stands or display elements for contents
    • 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
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/5415—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps and in the container body so as to form after rupture a lid hinged to a side edge of the container body
    • 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
    • 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
    • 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
    • B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
    • B65D2581/3402—Cooking or heating method specially adapted to the contents of the package characterised by the type of product to be heated or cooked
    • B65D2581/3405—Cooking bakery products
    • B65D2581/3406—Pizza or bread
    • 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
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/3459—Means for holding the package at a distance from the microwave oven floor, e.g. stands
    • B65D2581/346—Means for holding the package at a distance from the microwave oven floor, e.g. stands integral to the package, e.g. the package is transformed into a stand
    • 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
    • B65D2581/3495—Microwave susceptor attached to the lid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Package Specialized In Special Use (AREA)
  • Cartons (AREA)

Abstract

A carton is formed from a blank comprising a sheet of paperboard having fold lines defining a top 2, bottom 3, and side panels 3, 5, 6, 7. A sheet of microwave interactive or susceptor material 8 is bonded to the inner side of the top panel. Cut and fold lines in the bottom panel 3 define a pair of downwardly displaceable support legs 16,17, a removable panel 20, defined by cut lines in the bottom panel 3, being attachable to the support legs to hold them in position. A tray (not shown) is provided for insertion into the carton. The tray is formed from a paperboard material coated on its upper surface with a microwave interactive material for converting microwave energy into thermal energy. The bottom wall contains a plurality of apertures or pierced holes to permit venting of a food.

Description

ARTICLE OF PACKAGING
The present invention relates to an article of packaging for a food product and in particular to an article of packaging for assisting the heating and/or cooking a food product in a microwave.
Microwave ovens provide an extremely quick and economical method of heating a food product and hence have become popular for heating convenience food. However, microwave heating of food can be uneven and does not usually provide satisfactory results where browning or crisping of the upper surface or crust of the food is required, for example in the case of pizzas and pies.
It is known to provide cartons, sleeve or containers having panels or portions arranged to be adjacent the food product coated with or formed from a microwave interactive material, frequently referred to as a susceptor material, such as a polymer coated metal foil, said material converting microwave energy into thermal energy to assist in the heating, in particular browning and/or crisping, of the food product. Such cartons have been used to assist in the heating/cooking of frozen piza in a microwave.
The present invention provides an improved article of packaging which can be used to store and transport a frozen food product, in particular a pie, and subsequently assist in the satisfactory heating/cooking of the food product in a microwave oven without requiring removal of the product from the packaging until it is ready for consumption.
According to the present invention there is provided an article of packaging including a carton formed from a unitary blank of sheet material and comprising a top panel, a bottom panel parallel to and spaced from the top panel and at least one side panel such that the top, bottom and at least one side panel define a closed container, at least a portion of the underside of the top panel being coated with or formed from a microwave interactive material for converting microwave energy into thermal energy, said bottom panel being pre-cut to define downwardly displaceable support legs upon which the carton can rest with the bottom panel spaced from a surface therebeneath, said support legs being formed from first and second spaced substantially parallel fold lines of equal length, first and second substantially parallel cut lines of perforations or cuts extending between respective ends of said first and second fold lines and extending perpendicular to said first and second fold lines such that the first and second fold lines and first and second cut lines define the sides of a rectangle or square, and third and fourth perforated cut lines extending between said first and second cut lines and perpendicular thereto, the spacing between the third cut line and the first fold line being equal to the spacing between the fourth cut line and the second fold and equal to the spacing between the third and fourth cut lines, such that the third and fourth cut lines and central portions of the first and second cut lines define a removable panel, locating cuts being provided in the material forming the support legs extending towards the respective adjacent fold lines from the midpoint of each of the third and fourth cuts lines normal to said third and fourth cuts lines and being formed in a side of the removable panel adjacent the ends thereof, whereby, in use, the removable panel is removed from the bottom panel of the carton and the support legs are displaced downwardly about the first and second fold lines until the support legs extend perpendicular to the remainder of bottom panel, the removable panel being secured to the support legs by means of the locating cuts such that the removable panel extends between the support legs in a direction perpendicular to said support legs and maintains said support legs in their downwardly displaced position to provide a stable supporting structure upon which the carton can rest.
Preferably a portion of the first and/or second cut line defining a side of the removable panel is arcuate to permit easy removal of the removable panel.
Preferably at least a portion of said at least one side of the carton is removable to provide a vent aperture during heating/cooking of a food product contained therein. In a preferred embodiment the top and bottom panels of the carton comprise square planar panels and are interconnected by four side panels, at least a portion of opposed pairs of said panels being removable to provide opposed ventilating apertures.
Preferably the present invention further provides a tray comprising a bottom wail and a continuous side wall attached to or formed integrally with said bottom wall and extending upwardly from said bottom wall, said bottom wall and side wall defining a cavity for receiving a food product such as a pie, at least a portion of the bottom wall being formed from or being coated with a microwave interactive material for converting microwave energy into thermal energy, the tray being dimensioned to be received within the carton described above. Preferably the bottom wall and side wall of the tray is formed from or coated with a microwave interactive material. Preferably the bottom wall contains a plurality of apertures or pierced holes to permit venting of a food product during heating on the tray.
The present invention will now be described further, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a plan view of a blank used to form a carton in accordance with the invention; Figures 2 to 7 comprise perspective views of the carton formed from the blank of Figure 1 during the stages of preparation for the microwave cooking of a food product contained therein.
A carton according to the invention is formed from the blank shown in Fig. 1, the blank comprising a foldable planar sheet of paperboard having fold lines defining a top panel 2, a bottom panel 3, and first and second side panels 3, 5 separated by parallel fold lines. Third and fourth side panels 6, 7 are defined by further portions separated from the top and bottom by further fold lines.
A sheet of microwave interactive or susceptor material 8, in the form of a polymer coated metallic foil, is bonded to the inner side of the top panel.
A pair of spaced parallel fold lines 10,11 are provided on a central region of the bottom panel 3. First and second substantially parallel cut lines 12,13, formed from a line of perforations or short cuts, extend between respective ends of said first and second fold lines 10,11 perpendicular thereto such that the first and second fold lines 10,11 and first and second cut lines 12,13 define four sides of a rectangle.
Third and fourth cut lines 14,15 extend between said first and second cut lines 12,13 perpendicular thereto, the spacing between the third cut line 14 and the first fold line 10 being equal to the spacing between the fourth cut line and the second fold 11 and equal to the spacing between the third and fourth cut lines 14,15. The third and fourth cut lines 14, 15 and central regions 21,22 of the first and second cut lines 12,13 define a removable panel 20.
The portion 21 of the first cut line defining one end of the removable panel 20 is arcuate to assist in the removal of the removable panel as will be described later with reference to Fig. 2.
The material between the first and second cut lines 12,13 and an adjacent fold line 10, 11 forms a pair of downwardly displaceable support legs 16, 17.
A locating cut 23 is provided at the midpoint of each support leg 16,17, each locating cut 23 extending approximately half way across the respective support leg towards the respective adjacent fold lines and a pair of corresponding locating cuts 24 are provided in a side of the removable panel adjacent the ends thereof.
Two lines of parallel perforations are provided in each side panel 6, 7 adjacent the respective fold lines in the top and bottom panels 2,3 to enable the side panels 6, 7 to be removed during heating of a food product contained within the assembled carton.
A tray (not shown) comprising a bottom wall and an integrally formed continuous side wall extending upwardly therefrom to define a cavity for receiving a food product such as a pie, is provided for insertion into the carton described above. The tray is formed from a paperboard material coated on its upper surface with a microwave interactive material for converting microwave energy into thermal energy. The bottom wall contains a plurality of apertures or pierced holes to permit venting of a food.
In use, a frozen food product, such as a pie or a pizza, is placed on the tray and inserted into a carton formed from the blank of Fig. 1 and sealed for transit and storage.
When the customer wishes to consume the food product the carton is prepared for insertion into a microwave oven as follows: Firstly, as shown in Fig. 2, the carton in inverted and the removable panel 20 is torn from the bottom panel of the carton. Next, as shown in Fig. 3., the support legs 16,17 are displaced downwardly about the first and second fold lines 10,11 until the support legs 16,17 extend perpendicular to the remainder of bottom panel 3.
As shown in Fig. 4, the removable panel 20 is then secured to the support legs 16,17 by means of the cooperating locating cuts 23,24 such that the removable panel 20 extends between the support legs 16,17 in a direction perpendicular to said support legs 16,17 and maintains the support legs 16,17 in their downwardly displaced position to provide a stable supporting structure upon which the carton can rest.
Once the supporting structure has been assembled, the carton is returned to its correct orientation as shown in Fig. 5. Next the side panels 6, 7 are torn off to provide increased ventilation in order to avoid the build up of moisture in the carton during cooking. The carton, containing the tray having a frozen food product therein, is then placed in a microwave oven, the carton being supported on the turntable or dish 30 via the support legs 16,17 and removable panel 20 such that the food product within the carton is spaced above the turntable 30 and the product is heated within the microwave for the required time period. During heating, the microwave interactive material of the tray and the microwave interactive material affixed to the inner surface of the top panel of the carton convert the microwave energy to thermal energy to ensure even heating of the food product and browning of the crusVupper surface of the food product to produce an effect comparable to cooking the food product in a conventional oven.
It is also envisaged that the upper surface of the food product may be coated with a chemical agent to facilitate "browning" of the crust where the food product is a pie or a pizza. Such chemical agent may be applied to the food product prior to insertion into the carton or may be provided in a suitable container within the carton for application to the surface of the food product by the consumer prior to cooking.

Claims (8)

1. An article of packaging including a carton formed from a unitary blank of sheet material and comprising a top panel, a bottom panel parallel to and spaced from the top panel and at least one side panel such that the top, bottom and at least one side panel define a closed container, at least a portion of the underside of the top panel being coated with or formed from a microwave interactive material for converting microwave energy into thermal energy, said bottom panel being pre-cut to define downwardly displaceable support legs upon which the carton can rest with the bottom panel spaced from a surface therebeneath, said support legs being formed from first and second spaced substantially parallel fold lines of equal length, first and second substantially parallel cut lines of perforations or cuts extending between respective ends of said first and second fold . lines and extending perpendicular to said first and second fold lines such Àe that the first and second fold lines and first and second cut lines define the Àe À À. sides of a rectangle or square, and third and fourth perforated cut lines À: .: extending between said first and second cut lines and perpendicular thereto, the spacing between the third cut line and the first fold line being À . . equal to the spacing between the fourth cut line and the second fold and Àe equal to the spacing between the third and fourth cut lines, such that the third and fourth cut lines and central portions of the first and second cut lines define a removable panel, locating cuts being provided in the material forming the support legs extending towards the respective adjacent fold lines from the midpoint of each of the third and fourth cuts lines normal to said third and fourth cuts lines and being formed in a side of the removable panel adjacent the ends thereof, whereby, in use, the removable panel is removed from the bottom panel of the carton and the support legs are displaced downwardly about the first and second fold lines until the support legs extend perpendicular to the remainder of bottom panel, the removable panel being secured to the support legs by means of the locating cuts such that the removable panel extends between the support legs in a direction perpendicular to said support legs and maintains said support legs in their downwardly displaced position to provide a stable supporting structure upon which the carton can rest.
2. An article of packaging as claimed in claim 1, wherein a portion of the first and/or second cut line define a side of the removable panel is arcuate to permit easy removal of the removable panel.
3. An article of packaging as claimed in any preceding claim, wherein at least a portion of said at least one side of the carton is removable to provide a
. vent aperture during heating/cooking of a food product contained therein. en.. À Àe..CLME:
4. An article of packaging as claimed in any preceding claim, wherein the top À.
À. and bottom panels of the carton comprise square planar panels and are : .: interconnected by four side panels, at least a portion of opposed pairs of said panels being removable to provide opposed ventilating apertures. I.
5. A tray comprising a bottom wall and a continuous side wall attached to or formed integrally with said bottom wall and extending upwardly from said bottom wall, said bottom wall and side wall defining a cavity for receiving a food product such as a pie, at least a portion of the bottom wall being formed from or being coated with a microwave interactive material for converting microwave energy into thermal energy, the tray being dimensioned to be received within the article of packaging as claimed in any preceding claim.
6. A tray as claimed in claim 5, wherein the bottom wall and side wall of the! tray is formed from or coated with a microwave interactive material.
7. A tray as claimed in claim 6, wherein the bottom wall contains a plurality of apertures or pierced holes to permit venting of a food product during heating on the tray.
8. An article of packaging substantially as herein described with reference to the accompanying drawings. À À À À À A. À À. À. À À - À À.
À.. e. À À À À À.e À
GB0229722A 2002-12-19 2002-12-19 Article of packaging Expired - Fee Related GB2397813B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0604949A GB2420776A (en) 2002-12-19 2002-12-19 Tray for microwavable food package
GB0229722A GB2397813B (en) 2002-12-19 2002-12-19 Article of packaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0229722A GB2397813B (en) 2002-12-19 2002-12-19 Article of packaging

Publications (3)

Publication Number Publication Date
GB0229722D0 GB0229722D0 (en) 2003-01-29
GB2397813A true GB2397813A (en) 2004-08-04
GB2397813B GB2397813B (en) 2006-05-03

Family

ID=9950090

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0229722A Expired - Fee Related GB2397813B (en) 2002-12-19 2002-12-19 Article of packaging
GB0604949A Withdrawn GB2420776A (en) 2002-12-19 2002-12-19 Tray for microwavable food package

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0604949A Withdrawn GB2420776A (en) 2002-12-19 2002-12-19 Tray for microwavable food package

Country Status (1)

Country Link
GB (2) GB2397813B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096948A (en) * 1977-03-18 1978-06-27 American Can Company Cook-in carton with integral removable section and blank therefor
US4801774A (en) * 1987-11-24 1989-01-31 Container Corporation Of America Center-supported microwave tray
US5510132A (en) * 1994-06-07 1996-04-23 Conagra, Inc. Method for cooking a food item in microwave heating package having end flaps for elevating and venting the package

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804780A (en) * 1982-12-20 1989-02-14 American Cyanamid Company Substituted nitro and cyanoguanidines
US4592914A (en) * 1983-06-15 1986-06-03 James River-Dixie/Northern, Inc. Two-blank disposable container for microwave food cooking
US5352465A (en) * 1992-08-04 1994-10-04 Vendtron, Inc. Disposable, microwaveable, food storage container
AU4006197A (en) * 1996-08-26 1998-03-19 Fort James Corporation Microwavable package
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
US6054698A (en) * 1996-11-01 2000-04-25 Mast; Roy Lee Microwave retaining package for microwave cooking
US6168812B1 (en) * 1997-04-29 2001-01-02 Jeno F. Paulucci Microwavable semi-circular pizza product and packaging combination

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096948A (en) * 1977-03-18 1978-06-27 American Can Company Cook-in carton with integral removable section and blank therefor
US4801774A (en) * 1987-11-24 1989-01-31 Container Corporation Of America Center-supported microwave tray
US5510132A (en) * 1994-06-07 1996-04-23 Conagra, Inc. Method for cooking a food item in microwave heating package having end flaps for elevating and venting the package

Also Published As

Publication number Publication date
GB0229722D0 (en) 2003-01-29
GB0604949D0 (en) 2006-04-19
GB2397813B (en) 2006-05-03
GB2420776A (en) 2006-06-07

Similar Documents

Publication Publication Date Title
CA2557267C (en) Multi-purpose food preparation kit
US5543606A (en) Non-circular ovenable food package having a base with depending leg members and at least one raised portion and associated food package
EP0242026B1 (en) Package assembly including a multi-surface micro-wave interactive tray
US5510132A (en) Method for cooking a food item in microwave heating package having end flaps for elevating and venting the package
US4877932A (en) Microwave container assembly
US7541562B2 (en) Microwave cooking packages and methods of making thereof
US7468498B2 (en) Microwavable container with sleeve
US20030206997A1 (en) Susceptor sleeve for food products
US4742203A (en) Package assembly and method for storing and microwave heating of food
US20050133500A1 (en) Polygonal susceptor cooking trays and kits for microwavable dough products
JPH0246469B2 (en)
US20070241102A1 (en) Apparatus for microwave cooking of a food product
EP0506841B1 (en) Microwave food package
JPH02117823A (en) Composite sheet material and container
GB2397813A (en) Microwave heatable food packaging
GB2304329A (en) Lids for trays
GB2213689A (en) Improvements in or relating to containers
US20110073593A1 (en) Separable raised platform for microwave heating of a food product

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20061219