Chlorine generator for preservation of fruits and vegetables

Patent 5711211 Issued on January 27, 1998. Estimated Expiration Date:

January 31, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Embalajes Proem Limitada

Application

No. 792250 filed on 01/31/1997

US Classes:

99/467, SUBJECTING FOOD TO AN ENCLOSED MODIFIED ATMOSPHERE99/485, MEANS TO TREAT FOOD206/.6, FOR GAS206/205INCLUDING ANCILLARY ARTICLE CONTACTING MEDIUM

Examiners

Primary: Simone, Timothy F.

Attorney, Agent or Firm

Frost & Jacobs

International Class

A23B 007/00

Abstract

A chlorine generator for preserving fruits and vegetables includes a first layer of paper or polyethylene and a second layer of polyethylene. The first layer has a weight of from about 20 to about 70 g/m2 and is preferably made from a laja-type paper. It is preferred that at least one surface of the first layer is coated with a plastic permeable film, such as polyethylene, having a weight of from about 5 to about 25 g/m2. The two layers are joined together, preferably by thermal seal, to define one or more pockets. A hypochlorite material, such as calcium hypochlorite, is placed in the pockets. This material releases active chlorine gas upon reaction with moisture from said fruits and vegetables. Alternatively, the first layer can be impregnated with a mixture containing the hypochlorite (such as a mixture of hypochlorite and sodium chloride) and is preferably coated with a resin material.