Timed water shut off system

Details Timed water shut off system Timed water shut off system

1980-03-21

1981-02-10

Cohan, Alan

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13762411, 1374875, F16K 3102

Patent

active

042495652

ABSTRACT:
A sensing valve is provided in a water supply pipe upstream of a solenoid-closed valve. A sensing switch coupled to the sensing valve is controlled in position by such valve. A normally open timer switch is coupled to a timer and maintained open by the timer in accordance with the setting of the timer and during energization of the timer. The timer switch is closed upon the timing out of the timer and opened manually. The sensing switch, the timer and a source of electrical energy are electrically connected to a first circuit whereby a flow of water in the water supply pipe at the sensing valve opens the sensing valve and closes the sensing switch to energize the timer. The source of electrical energy, the timer switch and the solenoid-closed valve are electrically connected in a second circuit whereby the sensing valve activates the timer and after the lapse of the period of time for which the timer is set, the timer closes the timer switch thereby energizing the solenoid-closed valve to close the valve to prevent a flow of water to the structure.

REFERENCES:
patent: 2877467 (1959-03-01), Cloud
patent: 3416560 (1908-12-01), Bruno
patent: 3843056 (1974-10-01), Nye

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