Automatically ventable sealed food package for use in microwave

Details Automatically ventable sealed food package for use in microwave Automatically ventable sealed food package for use in microwave

1978-12-20

1980-07-01

Weinstein, Steven L.

Food or edible material: processes, compositions, and products

Packaged or wrapped product

Having specific electrical or wave energy feature

219 1055E, 229 35MF, 229DIG14, 426113, 426118, 426234, B65D 5116, H05B 900

Patent

active

042106745

ABSTRACT:
A refrigerated food is packaged in a paperboard tray covered by a plastic film bonded to upper edges of the tray sidewalls in provision of a barrier against contamination of the food. The film and the tray are transparent to microwave energy for heating the food, and automatic venting of the covered tray, while heating, is afforded by a relatively small strip of electrically conductive material on the film and absorptive of microwave energy in an amount sufficient to heat the same and melt a vent opening in the film.

REFERENCES:
patent: 2633284 (1953-03-01), Moffett et al.
patent: 3219460 (1965-11-01), Brown
patent: 3353968 (1967-11-01), Krajewski
patent: 3398041 (1968-08-01), Ferree
patent: 3410697 (1968-11-01), Stephenson
patent: 3754371 (1973-08-01), Walker
patent: 3777099 (1973-12-01), Levinson
patent: 3941967 (1976-03-01), Sumi et al.
patent: 3997677 (1976-12-01), Hirsch et al.
patent: 4013798 (1977-03-01), Goltsos

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