Valve vent

Details Valve vent Valve vent

1990-04-06

1990-08-28

Nilson, Robert G.

Valves and valve actuation

Reciprocating valve

Push or pull operator

137495, F16K 3100

Patent

active

049519182

ABSTRACT:
A valve assembly has a valve operting button with an outwardly extending button flange received in a cavity. Liquid entering the cavity floats the button to move the button flange into engagement with a surface, and this tends to seal the cavity and cause liquid pressure buildup therein. A venting path between the button flange & the surface it engages prevents sealing of the cavity, and prevents liquid pressure buildup therein.

REFERENCES:
patent: 2550863 (1951-05-01), Roehr
patent: 3033466 (1962-05-01), Sorensen
patent: 4481971 (1984-11-01), Farrell

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