Valve assembly for pressurized dispensers

Details Valve assembly for pressurized dispensers Valve assembly for pressurized dispensers

1982-03-08

1984-08-07

Marcus, Stephen

Fluent material handling, with receiver or receiver coacting mea

Filling or refilling of dispensers

Coating-implement-type receiver

22240216, B65B 3100

Patent

active

044637845

ABSTRACT:
In a valve assembly for a pressurized dispenser, such as of the kind commonly known as aerosol cans, a novel arrangement is proposed for sealing the spray tip or button to the ferrule or center boss of the mounting cup of the valve during `gassing`. An inwardly directed annular shoulder formed in the top wall of the ferrule or center boss is engaged by an outwardly facing annular surface on the underside of the spray tip and the higher the pressure the better the seal. As the spray tip no longer needs to be as flexible as hitherto it can be made of polypropylene. A complementary outward-facing shoulder on the underside of the top wall helps to locate the rim of the valve shell and thereby to resist displacement of the gasket during gassing.

REFERENCES:
patent: 3122180 (1964-02-01), Abtlanalp
patent: 3160182 (1964-12-01), O'Donnell
patent: 3319669 (1967-05-01), Abtlanalp
patent: 3404863 (1968-10-01), Green
patent: 3738542 (1983-06-01), Ruscith
patent: 4247024 (1981-01-01), Vogel
patent: 4271875 (1981-06-01), Meshberg

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