Food or edible material: processes – compositions – and products – Packaged or wrapped product – Packaged product is animal flesh
Patent
1995-11-20
1999-06-29
Weinstein, Steven
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Packaged product is animal flesh
426124, 426127, 2064841, 220256, 220257, 220258, 22912535, 2291231, B65D 8120
Patent
active
059166142
ABSTRACT:
Dual state packaging may be implemented with a tray having a peripheral flange adapted to receive a pair of membranes to enclose the tray. The lower membrane is the more permeable of the two. It may be attached to a first surface of the flange. The second membrane is attached to a second outer surface of the flange without direct connection except through the tray to the more permeable membrane. The two connection surfaces may be separated by a depression to facilitate the cutting away of the material forming the more permeable membrane in a continuous manufacturing process. With the less permeable membrane in place, a desired gaseous environment may be maintained within the package. When it is desired to change the gaseous environment, the upper less permeable membrane may be peeled away allowing gaseous communication through the lower more permeable membrane.
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Weinstein Steven
World Class Packaging Systems, Inc.
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