Timed shut-off mixing water valve
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United States of America Patent
Stats
-
Sep 6, 1988
Grant Date -
N/A
app pub date -
Jan 19, 1988
filing date -
Jan 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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