Expandable bag and method of manufacture

Details Expandable bag and method of manufacture Expandable bag and method of manufacture

1985-05-30

1987-03-31

Culver, Horace M.

Package making

Methods

Plural covers

53453, 53470, 53474, B65B 3110, B65B 502

Patent

active

RE0323837

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: 2900258 (1959-08-01), Wagner
patent: 2907173 (1959-10-01), Robbins
patent: 3023750 (1962-03-01), Baron
patent: 3578210 (1971-05-01), Pitrolffy-Szabo
patent: 3718236 (1973-02-01), Reyner et al.
patent: 3763622 (1973-10-01), Stanley, Jr.
patent: 3940905 (1976-03-01), Perry, 3rd
patent: 3946534 (1976-03-01), Egly
patent: 4322465 (1982-03-01), Webster

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