Preservative gas generating device

Details Preservative gas generating device Preservative gas generating device

2008-03-04

2008-03-04

Simone, Timothy F. (Department: 1761)

Foods and beverages: apparatus

Subjecting food to an enclosed modified atmosphere

C099S485000

Reexamination Certificate

active

07337709

ABSTRACT:
A preservative gas generating device includes a carrier sheet and a layer of a matrix forming material having a preservative gas generating compound dispersed therein. The layer of matrix forming material permits the generation of a preservative gas by the preservative gas generating compound and to permit the gas to permeate out of the matrix formed by the material. The matrix forming material adheres to the carrier sheet in the form of a layer covering an area of the carrier sheet and forms at least one discrete zone, with a peripheral area of the carrier sheet surrounding the discrete zone(s) being substantially free of the matrix forming material. A cover sheet is secured to said peripheral area to enclose the layer of matrix forming material between the carrier sheet and the cover sheet. At least one of the carrier sheet and the cover sheet are permeable to said preservative gas.

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