Solenoid operated faucet

A faucet has a body with a hollow inner cavity and a spout which opens into the inner cavity. A valve assembly is located within the inner cavity to control the flow of water from a source into the spout. The valve assembly comprises a housing with an inlet chamber which opens into a ring-shaped cha...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	IQBAL, MUHAMMAD, KREUTZER, JEFFERY J, SCHWARTZ, CARL R
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING SEWERAGE SINKS TAPS THERMAL INSULATION IN GENERAL VALVES WATER SUPPLY WEAPONS
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Beschreibung
Zusammenfassung:	A faucet has a body with a hollow inner cavity and a spout which opens into the inner cavity. A valve assembly is located within the inner cavity to control the flow of water from a source into the spout. The valve assembly comprises a housing with an inlet chamber which opens into a ring-shaped channel, an outlet chamber having an opening centrally located with respect to the ring of the channel, and a diaphragm to selectively close the communication of the inlet and outlet chambers. A solenoid includes a plunger that is biased by a spring against the diaphragm and an electromagnetic coil to pull the plunger away from the diaphragm. A proximity sensor is included to detect the presence of an object adjacent the faucet and energize the coil. A safeguard alarm mechanism is provided to deenergize the coil after a given interval if the object continues to be detected and thereafter periodically briefly energize the solenoid until the object is removed.