Microwave packaging with indentation patterns

Details Microwave packaging with indentation patterns Microwave packaging with indentation patterns

2005-07-19

2005-07-19

Leung, Philip H. (Department: 3742)

Electric heating

Microwave heating

Cookware

C219S728000, C099SDIG014, C426S107000, C426S234000, C426S243000

Reexamination Certificate

active

06919547

ABSTRACT:
Indentation patterns are scored in microwave packaging materials to enhance the baking and browning effects of the microwave packaging materials on food products. The indentation patterns provide venting to either channel moisture from one area of the food product to another, trap moisture in a certain area to prevent it from escaping, or channel the moisture completely away from the food product. The indentation patterns cause the microwave packaging material underneath a food product to be slightly elevated above the cooking platform in the base of a microwave. The indentation patterns lessen the heat sinking effect of the cooking platform by providing an air gap for insulation. Elevating the base of the microwave packaging material further allows more incident microwave radiation to propagate underneath the microwave packaging material to be absorbed by the food product or by microwave interactive materials in the microwave packaging material that augment the heating process.

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patent: 6150647 (2000-11-01), Anderson et al.
patent: 6204492 (2001-03-01), Zeng et al.

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