(under subclass 619) Subject matter which includes a device that senses the presence or absence of a human being in relation to the wash vessel and controls the flow of water into the wash vessel as a result of the sensing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302+, for automatic flush urinals which includes proximity-operated water valves.
313+, for flush closets with automatic flush-responsive means.
668+, for a supply outlet, drain, overflow or trap having condition responsive means.
SEE OR SEARCH CLASS
137, Fluid Handling,
562, for faucet-connected sink-drained system. 239, Fluid Sprinkling, Spraying, and Diffusing,
16+, for fountains, and subclasses 569+ for valve means in flow line of sprinkling, spraying, or diffusing devices.
251, Valves and Valve Actuation,
131, for remote-control system for electrical actuator of a valve.
331, Oscillators,
6, for oscillators responsive to an external physical device.
340, Communications: Electrical,
591+, for intrusion-type signalling systems and subclass 573.1+ for signalling systems responsive to humans or animals.
361, Electricity: Electrical Systems and Devices,
173, for light control of electromagnetic devices; and subclasses 179+ for proximity control of electromagnetic devices.
