Valves and valve actuation – With material guide or restrictor – Movable or resilient guide or restrictor
Patent
1986-07-21
1987-11-03
Cohan, Alan
Valves and valve actuation
With material guide or restrictor
Movable or resilient guide or restrictor
2511496, 251210, 251332, F16K 1300
Patent
active
047039140
ABSTRACT:
A valve joint, in particular, a measuring valve joint for fluid systems with high working pressures, comprises a connector bushing under line pressure having a spring-loaded and mechanically operable check valve in a bore. A cylindrical valve body in the bore presses its packing shoulder against a sealing ring consisting of an elastomeric material in the closed state of the valve. A sealing liner and the valve body form a sealable flow channel arranged in the connector bushing. Further seals are arranged downstream and/or upstream from the sealing ring. Upon the opening of the valve body the further seals terminate their sealing function only after the lifting of the sealing ring from the packing shoulder and preferably in a delayed manner.
REFERENCES:
patent: 2931385 (1960-04-01), Carlisle
patent: 3104088 (1963-09-01), Cator
patent: 3754568 (1973-08-01), Gallagher
patent: 4253488 (1981-03-01), Leverberg
patent: 4269389 (1981-05-01), Ekman
patent: 4287914 (1981-09-01), Buseth et al.
Cohan Alan
Hydrotechnik GmbH
Koch Robert J.
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