Aerosol container having sealed propellant means

Details Aerosol container having sealed propellant means Aerosol container having sealed propellant means

1975-10-24

1976-11-16

Knowles, Allen N.

Undertaking

2223865, B65D 3528

Patent

active

039920038

ABSTRACT:
An aerosol container having sealed propellant means comprises a flexible propellant bag having air or inert gases under pressure and a predetermined quantity of product located within the container. In a first embodiment, the propellant bag is fixedly mounted at the outlet and includes a separate valve for loading of the pressurized gas. A second valve is mounted at the outlet and is connected to a perforated tube which extends downwardly into the container to emit product when the valve stem is depressed. Actuation of the valve stem causes the propellant bag to expand forcing the product out through the valve. In a second embodiment, the container includes a plurality of product bags which are mounted to a valve arrangement at the outlet and a pressurized propellant which is forced into the container to maintain the product bags under pressure. The valve arrangement comprises a separate valve for each product bag and a valve for loading the propellant into the container tube. The product valves are connected to a mixing cap to emit a predetermined spray when the cap is depressed. In both embodiments of the invention, the propellant is not emitted with the spray and in instances where fluorocarbons are used this is an important ecological advantage.

REFERENCES:
patent: 2723161 (1955-11-01), Covington
patent: 3245435 (1966-04-01), Healy
patent: 3260421 (1966-07-01), Rabussier
patent: 3342377 (1967-09-01), Peredy
patent: 3416709 (1968-12-01), Shultz et al.
patent: 3608781 (1971-09-01), Flynn
patent: 3608782 (1971-09-01), Sathicq
patent: 3659395 (1972-05-01), Morane et al.
patent: 3662929 (1972-05-01), Sims
patent: 3718236 (1973-02-01), Reyner et al.
patent: 3799398 (1974-03-01), Mordne et al.

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