Valve

Details Valve Valve

1974-12-18

1976-08-24

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

1374939, 13751625, F16K 1704, F16K 1718

Patent

active

039760960

ABSTRACT:
A relief/check valve wherein a relief valve element is displaced to open the valve when the inlet pressure exceeds the outlet pressure by a predetermined relief pressure. The relief valve element carries an elastomeric check valve element which permits reverse flow when the outlet pressure exceeds the inlet pressure. The invention is applicable to fuel tank vent valves and fuel line anti-siphon valves.

REFERENCES:
patent: 2431457 (1947-11-01), Bondurant
patent: 2966917 (1961-01-01), Bloom
patent: 2995148 (1961-08-01), Novak et al.
patent: 3067770 (1962-12-01), Fancher
patent: 3074423 (1963-01-01), Cox et al.
patent: 3439583 (1969-04-01), Stacey

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