Fluent material handling – with receiver or receiver coacting mea – Multiple passage filling means for diverse materials or flows – With valve
Patent
1977-04-22
1978-12-26
Schwadron, Martin P.
Fluent material handling, with receiver or receiver coacting mea
Multiple passage filling means for diverse materials or flows
With valve
137 68R, 137 77, 137595, 251 77, 251303, F16K 1736
Patent
active
041311426
ABSTRACT:
A safety valve for use in fuel dispensing systems including a vapor recovery system and having a valve body, first and second inlets in the body, first and second outlets in the body, first and second, separate, fluid flow passages in the body and extending between respective ones of the first and second inlets and outlets, two valve seats in the body, one in each of the passages, a shaft extending through and rotatable in the body adjacent the valve seats, first and second clapper valves in the body, one in each passage, each clapper valve having a limited lost motion connection to the shaft to be rotatable therewith, with limited lost motion, between positions seated against and spaced from the associated valve seat, a pair of springs, one for each valve, biasing the associated valve towards its associated seat, and a holding device for holding the shaft in a position of rotation within the body wherein the valves are spaced from their associated seats, and for sensing an unsafe condition in the vicinity of the valve body for releasing the shaft so that the springs will cause the valves to close.
REFERENCES:
patent: 828236 (1906-08-01), McElroy
patent: 1267314 (1918-05-01), Brogniez
patent: 1970629 (1934-08-01), Scott
patent: 3030982 (1962-04-01), Navara
patent: 3268202 (1966-08-01), Murray et al.
patent: 3489160 (1970-01-01), Moore
patent: 3874427 (1975-04-01), Tiggelbeck
Barr Robert H.
Eckel John D.
A. Y. McDonald Mfg. Co.
Gerard Richard
Schwadron Martin P.
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