Valve

Details Valve Valve

1974-09-09

1976-09-28

Reeves, Robert B.

Dispensing

With discharge assistant

Fluid pressure

22240224, 141 20, B65D 8314

Patent

active

039826740

ABSTRACT:
A valve for a pressurized aerosol dispenser comprises an axially movable, tubular valve body, a piston attached to the valve body, and an annular elastomeric gasket which encompasses the valve body and overlies the piston to provide an annular chamber therebetween when the valve is open. The valve body includes a cylindrical bore through it blocked by a wall which separates the bore into an education passageway and a discharge passageway. Vertically spaced, inlet and outlet orifices communicate with the education and discharge passageways, respectively, with the inlet orifice located above the outlet orifice. The chamber communicates the orifices with each other when the valve is open. The inner margin of the gasket normally sealingly occludes both orifices to close the valve. The vertical spacing between the orifices provides occlusion of the inlet orifice before the outlet orifice as the valve moves toward closure. Only some parts of the orifices need be vertically spaced.

REFERENCES:
patent: 2757826 (1956-08-01), Thomas
patent: 3176887 (1965-04-01), Potapenko et al.
patent: 3180535 (1965-04-01), Ward
patent: 3495744 (1970-02-01), Webster
patent: 3642180 (1972-02-01), Lehmann
patent: 3825159 (1974-07-01), Laauwe

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