Controlled atmosphere package

Details Controlled atmosphere package Controlled atmosphere package

1976-03-31

1977-10-25

Weinstein, Steven L.

Food or edible material: processes, compositions, and products

Packaged or wrapped product

Three or more layered packaging materials

206439, 206484, 206525, 229 43, 426123, 426129, 426396, B65D 8120

Patent

active

040556727

ABSTRACT:
A package is provided for controlling the atmospheric condition of a packaged product and includes first and second package walls sealed at their peripheries to define a product cavity therebetween. One package wall is formed from a gas impermeable material and the second package wall includes a composite of an inner gas permeable layer and an outer gas impermeable layer. The outer layer is adapted for removal from the inner layer without destroying the seal between the first and second package walls so as to allow gases to flow through the inner layer and to thereby change the atmospheric condition of the packaged product.

REFERENCES:
patent: 3151799 (1964-10-01), Engles Jr., et al.
patent: 3154225 (1964-10-01), Wadlinger et al.
patent: 3301464 (1967-01-01), Amberg
patent: 3393077 (1968-07-01), Moruea
patent: 3454210 (1969-07-01), Spiegel et al.
patent: 3464832 (1969-09-01), Mullinix
patent: 3552638 (1971-01-01), Quackenbush
patent: 3574642 (1971-04-01), Weinke
patent: 3650390 (1972-03-01), Hoon
patent: 3681092 (1972-08-01), Titchenal et al.
patent: 3713849 (1973-01-01), Grindrod

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