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 Biased food contact container and container insert

Details
Inventors: Pawlowski, Thomas D.;
Assignee: James River Corporation (Richmond, VA)
Primary Examiner: Czaja; Donald E.
Assistant Examiner: Weier; A. J.
Attorney, Agent or Firm: Sixbey, Friedman, Leedom & Ferguson

An improved container for use in microwave cooking includes an insert which maintains a microwave interactive material in contact with a food product during cooking. The isnert includes flaps or wing sections which bias a central panel towards the food, with the microwave interactive material associated with the central panel. To ease in handling prior to and during packaging, an adhesive restrains the bias flaps until the adhesive is at least partially melted during cooking. The insert may be arranged to prevent excessive bowing or curling of the central panel, and to improve venting or draining of fluids from the food product.

DETAILED DESCRIPTION It is thus an object of the present invention to provide an improved disposable package for heating a food product in which a microwave interactive layer is maintained in contact with upper and lower surfaces of the food product.
It is another object of the present invention to provide an improved package for storing and heating food by microwave energy in which a microwave interactive layer forming browning means is biased toward the food product and curling of the microwave interactive portion of the package is prevented.
It is a further object of the present invention to provide a microwave interactive panel which is biased towards the food product within a container, in which the biasing device is restrained during packaging.
It is yet another object of the present invention to provide a microwave interactive panel for browning of a food product in which the panel is biased towards the food product only after the package has been heated.
These and other objects and advantages of the invention are achieved by a microwave cook-in disposable package including an outer carton formed of a one-piece microwave paperboard blank and a pair of opposed microwave interactive layers adapted to sandwich food located within the carton.
At least one of the microwave interactive layers is urged by a biasing means towards the other layer to press one of the microwave layers into contact with the food and to urge the food into contact with the other microwave interactive layer so that opposed surfaces of the food can be browned.
The biasing means includes a paperboard spring device in which flanges from at least one of the microwave interactive layers are folded back such that the folded back flanges or flaps bias the microwave interactive layer away from the carton toward the food product.
The flanges are initially folded back and affixed to the panel having a microwave interactive layer such that the flanges do not exert a biasing force against the carton or food product during packaging


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