Modified atmosphere packaging method

Details Modified atmosphere packaging method Modified atmosphere packaging method

1999-11-26

2001-05-15

Foster, Jim (Department: 3728)

Special receptacle or package

Including ancillary article contacting medium

Gas medium

C426S129000

Reexamination Certificate

active

06230883

ABSTRACT:

FIELD OF THE INVENTION
A modified atmosphere package for storing oxygen sensitive goods which contains internal means for supporting such package.
BACKGROUND INVENTION
Applicant's copending patent application U.S. Ser. No. 09/182,754 describes and claims a modified atmosphere package for storing oxygen-sensitive goods. The package of the instant application is an improvement over the package of applicant's prior case, containing means for supporting the gas impermeable film used in the package. When vacuum is applied to such package, the film often tends to collapse, causing the package to have a less desirable appearance. The package of this case is as desirable as applicant's prior package and, additionally, is not subject to being collapsed as readily by the application of vacuum.
It is an object of this invention to provide a flexible, low cost apparatus for establishing a variety of modified atmospheric conditions within a package containing a food or non-food product.
SUMMARY OF THE INVENTION
In accordance with this invention, there is provided a modified atmosphere package for storing oxygen sensitive goods, comprising: a gas impermeable tray including flanges around the perimeter of said tray, and a gas impermeable film fitted with a first one-way valve, said film positioned over and adjacent to said flanges of said tray, said film is sealed to said flanges of said try forming said package, and wherein such package contains means disposed within the package for supporting said gas impermeable film.


REFERENCES:
patent: 4548824 (1985-10-01), Mitchell et al.
patent: 4548852 (1985-10-01), Mitchell
patent: 5547694 (1996-08-01), Perry et al.
patent: 5686126 (1997-11-01), Noel et al.
patent: 6023915 (2000-02-01), Colombo
patent: 6042852 (2000-03-01), Atwell et al.

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