Minimal wear dispensing valve

Details Minimal wear dispensing valve Minimal wear dispensing valve

1997-06-05

1999-03-30

Chambers, A. Michael

Valves and valve actuation

Hermetic flexible wall seal for actuator

Diaphragm

251367, F16K 31165

Patent

active

058878530

ABSTRACT:
A minimal wear valve assembly which includes a fluid reservoir having an inlet port and an outlet port for passage of the fluid therethrough. The reservoir defines a valve seat about and downstream of the outlet port. The assembly includes a valve having a first substantially non-deformable valve surface. The valve is movable with respect to the valve seat from an open condition which permits flow of the fluid through the outlet port to a closed condition which prevents flow of the fluid through the outlet port. The valve supports a sealing member for movement with the valve. The sealing member has greater compressibility than the first valve surface and provides a seal between the first valve surface and the valve seat upon movement of the valve to the closed condition.

REFERENCES:
patent: 2365650 (1944-12-01), Shaw et al.
patent: 3868969 (1975-03-01), Schwenk
patent: 4232696 (1980-11-01), Burris et al.

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