Spring-charged aerosol dispenser

Details Spring-charged aerosol dispenser Spring-charged aerosol dispenser

1974-02-11

1976-04-20

Reeves, Robert B.

Dispensing

Collapsible wall-type container

With wall-collapsing means

222340, B65D 3528

Patent

active

039513106

ABSTRACT:
An aerosol dispenser of the hand-held type, comprising a can which contains a flexible, collapsible bag having the substance to be discharged. A valve on the can communicates with the bag to effect the discharge. In the can a spring engages a wall portion of the bag, tending to collapse the same, and there are manually operable means including a finger piece for varying the force applied by the spring to the bag as the contents of the latter are gradually depleted whereby the rate of discharge of the spray can be maintained more nearly constant regardless of the quantity of substance occupying the bag at any particular time.

REFERENCES:
patent: 1235550 (1917-08-01), Carmody
patent: 1664936 (1928-04-01), Lyman
patent: 2328973 (1943-09-01), Goldfisher
patent: 3273760 (1966-09-01), Frankenberg
patent: 3335913 (1967-08-01), Bouet
patent: 3616970 (1971-11-01), Baumann et al.
patent: 3830410 (1974-08-01), Magrath et al.

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