Pressure relief for vacuum operated valve

Details Pressure relief for vacuum operated valve Pressure relief for vacuum operated valve

1991-05-15

1992-09-01

Shaver, Kevin P.

Dispensing

Volume or rate of flow metering

With hose pressure relief or maintenance

137110, 137599, 222318, B67D 516

Patent

active

051432587

ABSTRACT:
A liquid fuel dispensing system having a fuel reservoir and a plurality of remote fuel dispensers, each of which including a suction pump and a pressure regulator valve positioned in the fuel conduit on the inlet side of the suction pump. A pressure relief passage is positioned in the fuel conduit in parallel with the regulator valve. When the vapor pressure of the fuel on the inlet side of the regulator valve exceeds a predetermined pressure, the pressure relief valve opens to permit the flow of fuel through the relief passage within the conduit, thus bypassing the regulator valve.

REFERENCES:
patent: 1383708 (1921-07-01), Farr
patent: 1963270 (1934-06-01), Huffman et al.
patent: 2632458 (1953-03-01), Slomer
patent: 2958291 (1960-11-01), Rittenhouse
patent: 2996222 (1961-08-01), Botkin
patent: 3113700 (1963-12-01), Chaffee et al.
patent: 3120325 (1964-02-01), Tye et al.
patent: 3160332 (1964-12-01), Brunson
patent: 3524465 (1970-08-01), Sedker
patent: 3707981 (1973-01-01), Sadler et al.
patent: 3723025 (1973-03-01), Coakley
patent: 4111223 (1978-09-01), Gelnett
Publication of Tokheim Corporation Entitled "Model 52 Pressure Regulator".

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