Packing container for pressurized contents and a method for manu

Details Packing container for pressurized contents and a method for manu Packing container for pressurized contents and a method for manu

1983-06-07

1985-06-25

Kittle, John E.

Package making

Methods

Plural covers

53432, 426411, B65B 3102

Patent

active

045245657

ABSTRACT:
A packing container for pressurized contents, e.g. beer or carbonated refreshing beverages, can be manufactured from different material combinations which together provide the packing container with the necessary strength as well as the required tightness for gas as well as liquid.
In accordance with the invention a packing container is formed having an outer casing which has several material layers and which provides the packing container with its strength and gas-tightness, and a liquid-tight inner container of flexible plastic material. In the manufacture and filling of the packing container, the capacity of the contents is used to give off gas so as to expand the inner container until it lies closely against the outer shell and at the same time force the air out of the casing so that the packing container is rendered completely free of air.

REFERENCES:
patent: 4090343 (1978-05-01), Rausing
patent: 4205750 (1980-06-01), Dews
patent: 4342183 (1982-08-01), Gordon et al.
patent: 4459793 (1984-07-01), Zenger

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