Pressure generating system for a disposable container

Details Pressure generating system for a disposable container Pressure generating system for a disposable container

1987-07-14

1988-11-22

Rolla, Joseph J.

Dispensing

Processes of dispensing

2223865, B65D 8314

Patent

active

047859725

ABSTRACT:
A self-generating gas pressure apparatus such as an expandable closed pouch for placement within a container from which a fluid therein is to be dispensed under pressure. The apparatus has a plurality of internal compartments formed by pressure-rupturable seals and containing respective chemical compounds which when mixed upon adjacent-compartment seal rupture produce a gas. At least one of two adjacently-housed chemical compounds has in addition thereto a nucleating agent such as diatomaceous earth which acts to more rapidly force gas generated in the reaction of the adjacently-housed chemical compounds out of solution and thereby provide an operative pressure to the apparatus more quickly.

REFERENCES:
patent: 3718236 (1973-02-01), Reyner et al.
patent: 3861404 (1975-01-01), Changani
patent: 4360131 (1982-11-01), Reyner
patent: 4376500 (1983-03-01), Banks et al.
patent: 4478044 (1984-10-01), Magid
patent: 4513884 (1985-04-01), Magid
patent: 4679706 (1987-07-01), Magid et al.

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