Timed shut-off mixing water valve

Details Timed shut-off mixing water valve Timed shut-off mixing water valve

1988-01-19

1988-09-06

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

1376364, 251 20, 251 21, F16K 1107

Patent

active

047685530

ABSTRACT:
A ball clutch mechanism couples a faucet knob to the splined end of a valve stem for releasing the valve stem when the knob is fully depressed. A dashpot damped return spring urges the valve stem toward valve closed position when the clutch mechanism releases. The same dashpot controlled return spring closes the valve if the knob is released either before or after full travel inward. Rotation of the knob rotates the valve stem to determine water temperature by mixing hot and cold supplies. Check valves control passages that are provided to vent the lines during fluid flow and to drain the lines when the system is serviced.

REFERENCES:
patent: 3530889 (1970-09-01), Spencer
patent: 4050475 (1977-09-01), Watts
patent: 4285361 (1981-08-01), Lissau
patent: 4569369 (1986-02-01), Rinkewich

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