Gas filling method

Details Gas filling method Gas filling method

1979-07-31

1981-04-21

Sipos, John

Package making

Methods

Gas filling and/or evacuating and closing

53492, B65B 3104

Patent

active

042624720

ABSTRACT:
A method for filling gas into a container comprises the steps of forming a severed portion through the wall of the container, deforming outwardly a wall portion of the container adjacent to the severed portion so as to form a projecting portion, whereby a gas introducing passage communicating across the wall of the container is formed, supplying pressurized gas into the container through the passage, and deforming the projecting portion inwardly to close the gas introducing passage.

REFERENCES:
patent: 3081587 (1963-03-01), Heckethorn
patent: 3247640 (1966-04-01), Miles et al.
patent: 3668820 (1972-06-01), Parvin et al.

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