Fluid handling – Diverse fluid containing pressure systems – Gas pressure storage over or displacement of liquid
Patent
1995-04-03
1996-05-28
Michalsky, Gerald A.
Fluid handling
Diverse fluid containing pressure systems
Gas pressure storage over or displacement of liquid
137192, 138 26, 251332, F16L 55055
Patent
active
055202080
ABSTRACT:
A resilient seal for a liquid-gas accumulator of the type having a housing with a top gas port and a bottom liquid port. A valve assembly including a spring-loaded normally open poppet valve surrounded by a sleeve is positioned in the liquid port, and a device for controlling the opening and closing of the valve in response to the level of liquid in the housing is also provided within the housing. The resilient seal is positioned on top of the popper valve and comprises a first resilient seal member and a second resilient seal member. The first resilient seal member is positioned to seat on the first end of the sleeve outside of the valve seat as the valve closes thereby providing a secondary seal. The second resilient seal member is positioned atop the first resilient seal member and is positioned to seat on a first end of an anti-extrusion ring surrounding the sleeve as the valve closes, thereby providing a tertiary seal and creating a suction effect causing the first resilient seal member to better adhere to the first end of the sleeve.
REFERENCES:
patent: 3319658 (1967-05-01), Mercier
patent: 3548868 (1970-12-01), Mullaney
patent: 4176681 (1979-12-01), Mackal
patent: 4278105 (1981-07-01), Koomey
patent: 4294288 (1981-10-01), Murthy
patent: 4403629 (1983-09-01), deVries
patent: 4518005 (1985-05-01), Allewitz
patent: 5097862 (1992-03-01), Schneider
Accumulators, Inc.
Michalsky Gerald A.
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