Method of and apparatus for filling inert gas in a can

Details Method of and apparatus for filling inert gas in a can Method of and apparatus for filling inert gas in a can

1988-07-29

1990-04-24

Coan, James F.

Package making

Methods

Gas filling and/or evacuating and closing

53432, 53510, B65B 3104

Patent

active

049189026

ABSTRACT:
The lower edge of the peripheral wall of a can cap and the upper edge of a can barrel are spaced from each other by a gap therebetween. Streams of an inert gas from different groups of injector nozzles are injected, from outside of the gap, through the gap into the can cap and the can barrel, respectively, to replace air in the can cap and the can barrel with the injected gas. Then, the can barrel is fitted in to the can cap, and welded thereto to entrap the injected gas in the can barrel and the can cap.

REFERENCES:
patent: 3246447 (1966-04-01), Smith et al.
patent: 3545160 (1970-12-01), Jantze et al.
patent: 4312171 (1982-01-01), Vadas
patent: 4655029 (1987-04-01), Weiss

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