Method of driving an automatic on-off valve for a water passagew

Details Method of driving an automatic on-off valve for a water passagew Method of driving an automatic on-off valve for a water passagew

1990-07-03

1991-11-12

Rosenthal, Arnold

Fluid handling

Processes

25112904, 4623, F16K 3102

Patent

active

050639552

ABSTRACT:
A method of driving an automatic on-off valve for a water passageway uses the automatic on-off valve including an electromagnetic valve for opening and closing the water passageway, a sensor unit for detecting an object such as a man or a human hand and a control unit for controlling supply/cut-off of driving electric power supplied from a power supply to the electromagnetic valve in response to a signal transmitted from the sensor unit. The method comprises the steps of: permitting the control unit to control an operation of the electromagnetic valve in a normal state; manually supplying the electromagnetic valve with the driving power given from a manual driving unit connected to the electromagnetic valve; and thus forcibly driving the electromagnetic valve.

REFERENCES:
patent: 3333160 (1967-07-01), Gorski
patent: 4681141 (1987-07-01), Wang
patent: 4826129 (1989-05-01), Fong et al.
patent: 4886207 (1989-12-01), Lee et al.

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