US 4,592,914 AGranted

Two-blank disposable container for microwave food cooking

AssigneeJames River-Dixie/Northern, Inc.

InventorMorris W. Kuchenbecker

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Abstract

A two piece container (2) for cooking food in a microwave oven including an outer package (4, 60) formed from a single blank having a removable section (8, 72, 74, 80c) for exposing water vapor ventilation holes and an inner food supporting tray (6, 48). In one embodiment, the inner food supporting tray (6) is formed from a single blank and having V-shaped support legs (44 and 46) to raise the food supporting surface (38) above the surface of the outer package. The material from which the outer package is made has a vapor absorptive characteristic. The inner food supporting tray (6, 48) is completely coated on one side with a microwave absorptive material for heating up to brown or crisp the surface of food in contact with the tray (6) and may be, in addition, coated with a stick and grease resistant material. In one embodiment of the outer package (4), a microwave reflective shielding layer is included on an inner top panel (34) to prevent overcooking of the top of food contained within the container. A method for efficiently laminating the microwave reflective layer to paperboard stock for forming the outer package means is also disclosed.

A container for use in heating food in a microwave oven, comprising:

(a) outer package means constructed in a manner for containing and partially shielding food contained therein from microwaves and for providing an escape route for gas vapor generated during heating of the food;
and
(b) food supporting means for supporting the food and provided with a microwave interactive layer for converting microwave energy to heat so as to crisp a surface of the food supported thereon;
wherein said food supporting means is formed of a central food support panel flanked by at least a pair of leg flaps that are connected to the central food support panel by respective fold lines;
wherein said food supporting means is temporarily convertible from a flat configuration into a non-self-sustaining support tray configuration having said leg flaps folded relative to said central food support panel in an manner providing support leg portions extending downwardly with respect to the central food support panel and wall portions extending upwardly relative thereto;
wherein said food supporting means is retainable in said support tray configuration within said outer package means solely by virtue of the relative size and configuration of the outer package means relative to that of said food supporting means when it is in said support tray configuration;
and
wherein said food supporting means is operative for converting back substantially into said flat configuration forming a cutting surface for the food when said food supporting means is removed, with the food thereon, from the outer packaging means after the food has been heated, due to the none-self-sustaining nature of said support tray configuration, wherein said leg flaps are laterally opposed multi-sectioned leg flaps, said laterally opposed multi-sectioned leg flaps being foldable into an upwardly open V-shape extending the length of side edges of said food support panel to which they are connected by said respective fold lines, so as to form supporting legs to raise said central food support panel above the bottom of said outer package means to insulate the bottom panel of the outer package means from heat generated during the microwave absorptive cooking process.

5 more elements

Abstract

Claims9