Expandable bag

Details Expandable bag Expandable bag

1980-07-25

1983-03-15

Reeves, Robert B.

Dispensing

With discharge assistant

Container with follower

222399, 239323, B67D 554

Patent

active

043765009

ABSTRACT:
A fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing the bag to expand gradually from a collapsed condition to an ultimately fully expanded condition. The internal compartmentation in the bag also contains a solvent medium and a time release capsule of one of the components, thereby providing apparatus that can be mass produced and used for insertion into aerosol-type liquid product dispensing containers to provide relatively constant expulsion pressure during use.

REFERENCES:
patent: 2815152 (1957-12-01), Mills
patent: 3023750 (1962-03-01), Baron
patent: 3298575 (1967-01-01), Larsen
patent: 3430731 (1969-03-01), Satzinger
patent: 3578210 (1971-05-01), Pitrolffy-Szabo
patent: 3718236 (1973-02-01), Reyner et al.
patent: 3858764 (1975-01-01), Watson
patent: 3944064 (1976-03-01), Bashaw et al.

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