Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1979-03-08
1980-12-16
Cline, William R.
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
251282, F16K 31365
Patent
active
042391822
ABSTRACT:
A valve assembly for use in building water systems where hot and cold water supply line pressures vary, and having separate valve means for regulating the hot and cold water pressures. Independently mounted pressure equalizing means operated by the supply water pressures are connected to operate each of the valve means responsive to any pressure differential caused by changes in the supply pressures, to change the water pressure regulated by each of the valve means, with the magnitude and sense of the change reducing any such differential to zero and equalizing the pressures. The separate valve means are actuated by diaphragm assemblies forming a pair of movable walls mounted in a cartridge each one separating one water chamber from an associated hydraulic fluid chamber. Each diaphragm movable wall assembly includes a nonperforated diaphragm clamped between elements and held at its periphery in the cartridge to form a movable wall.
REFERENCES:
patent: 2705123 (1955-03-01), Hieger
patent: 2710162 (1955-06-01), Snoddy
patent: 2811167 (1957-10-01), Bott
patent: 3405730 (1968-10-01), Baumann
patent: 3689025 (1972-09-01), Kiser
patent: 4098487 (1978-07-01), Bauer
patent: 4106750 (1978-08-01), Karden et al.
patent: 4128128 (1978-12-01), Mears
patent: 4130267 (1958-12-01), Inada et al.
Arnold Don C.
Ritzenthaler Richard L.
Silletti Julio D.
Wilcox Thomas J.
Cline William R.
Elkay Manufacturing Company
Spiegel H. Jay
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