Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1994-10-24
1997-03-25
Rivell, John
Fluid handling
Line condition change responsive valves
Direct response valves
137859, F16K 1514
Patent
active
056135173
ABSTRACT:
A linear sheath valve having a valve platform and a conforming cover. The valve platform can have inlet and outlet channels to carry liquid into and out of the valve. An elastomeric membrane is held under tension between the cover and the valve platform so as to control the flow of liquid between channels. The cover includes an expansion area on the cover surface adjacent to the membrane and between the inlet and outlet. Liquid can flow through the valve only when it is under sufficient pressure to press the membrane into the expansion area, creating a flow path from the inlet between the membrane and the valve platform and to the outlet. Discontinuance of the pressure on the liquid allows the membrane to seal the inlet and outlet, thus preventing any flow between them.
REFERENCES:
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patent: 2629399 (1953-02-01), Kulick
patent: 2943643 (1960-07-01), Pinter
patent: 3528342 (1970-09-01), Simcock
patent: 4355639 (1982-10-01), DiSalvo
patent: 4421510 (1983-12-01), Ahlbeck
patent: 4646781 (1987-03-01), McIntyre
patent: 4846810 (1989-07-01), Gerber
patent: 5092855 (1992-03-01), Pardes
patent: 5279330 (1994-01-01), Debush
patent: 5305783 (1994-04-01), Debush
patent: 5305786 (1994-04-01), Debush
ReSeal International Limited Partnership
Rivell John
LandOfFree
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