Vent check valve

Details Vent check valve Vent check valve

1975-03-17

1976-05-04

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1514

Patent

active

039541215

ABSTRACT:
A vent check valve having a relatively flat configuration of its elements, being thereby adapted to utilize a local wall area of a housing to be vented as a supporting body and to provide a valve seat. The valve elements include an elastomeric flat diaphragm and a retainer for holding the diaphragm against the valve seat. These elements are disposed in respective counterbores formed in the wall body concentrically with the valve seat. The retainer has a spiderlike configuration with circumferential legs dimensioned to flex rearwardly in the associated counterbore upon installation to produce a self-locking wedge fit therein.

REFERENCES:
patent: 1797280 (1931-03-01), Zerk
patent: 3807445 (1974-04-01), McPhee

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