Flow discharge valve

Details Flow discharge valve Flow discharge valve

1990-07-11

1992-06-30

Huppert, Michael S.

Dispensing

With discharge assistant

Fluid pressure

22240218, 22240222, 22240224, B01D 8314

Patent

active

051255464

ABSTRACT:
A process and a discharge valve assembly are provided for regulating the flow of a liquid product from an aerosol container which is pressurized with a permanent gas propellant. The liquid product is conveyed under pressure to a mixing region and the propellant gas is separately conveyed to the mixing region. The mixture is passed through at least one choke restrictor that is located between the mixing region and the discharge nozzle. The mixture expanding downstream of the restrictor forms a foam-like mixture internally of the valve assembly and prior to discharge of the mixture from the exit nozzle.

REFERENCES:
patent: 3069098 (1962-12-01), Frangos et al.
patent: 3520450 (1970-07-01), Prussin et al.
patent: 3568888 (1971-03-01), Baldoni
patent: 3680738 (1972-08-01), Vos et al.
patent: 3854636 (1974-12-01), Conway et al.
patent: 3982668 (1976-09-01), Riccio
patent: 4117958 (1978-10-01), Spitzer et al.
patent: 4122978 (1978-10-01), Grimond et al.
patent: 4230243 (1980-10-01), Spitzer et al.
patent: 4401272 (1983-08-01), Merton et al.
patent: 4431119 (1984-02-01), Stoody
Muir and Eichhorn, "Compressible Flow of an Air-Water Mixture (etc.)", 1963, Heat Transfer and Fluid Mechanism Institute, pp. 83-104.
Van Wijngaarden, "One-Dimensional Flow of Liquids Containing Small Gas Bubbles", 1972, pp. 369-396.

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