Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1992-02-11
1992-12-08
Rosenthal, Arnold
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
25112904, 4623, 4DIG3, F16K 3140
Patent
active
051691183
ABSTRACT:
A sensor-operated battery powered flush valve for a toilet device includes a valve body having a water inlet and a water outlet. A diaphragm valve movable within the valve body controls the flow of water between the inlet and the outlet. A latching solenoid is mounted within the valve body and controls movement of the diaphragm between open and closed positions. A battery is mounted to provide the power for the latching solenoid. An infrared sensor connects the battery to the latching solenoid to cause the solenoid to move the diaphragm to a valve open position. A magnetically-operated switch is positioned within the valve body and a magnet carried by the diaphragm will cause the switch to close when the diaphragm moves to a valve open position. Closure of the magnetic switch causes the solenoid to move to a position in which the diaphragm will close flow between the inlet and the outlet of the flush valve.
REFERENCES:
patent: 3974879 (1976-08-01), Nelson, Jr. et al.
patent: 4227547 (1980-10-01), Cameron
patent: 4793588 (1988-12-01), Laverty, Jr.
patent: 5080324 (1992-01-01), Chi
Rosenthal Arnold
Sloan Valve Company
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