Method of filling and sealing

Details Method of filling and sealing Method of filling and sealing

2006-03-21

2006-03-21

Rada, Rinaldi I. (Department: 3721)

Package making

Methods

Gas filling and/or evacuating and closing

C053S408000, C053S477000, C053S095000, C053S101000

Reexamination Certificate

active

07013617

ABSTRACT:
A method of filling and sealing a gas capsule having (i) a hollow body portion and (ii) an elongate hollow neck portion having a free open distal end extending from the body portion is disclosed. The method is accomplished by applying a filling cap to the open end of the neck portion while evacuating the capsule and refilling with helium. Two crimping steps while pressure is maintained finishes the filling and sealing method.

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patent: 5546783 (1996-08-01), Fischer et al.
patent: WO 94/24263 (1994-10-01), None

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