Control for a sanitary fixture

Details Control for a sanitary fixture Control for a sanitary fixture

1996-01-24

1997-07-29

Lee, Kevin

Fluid handling

Processes

25112904, 4304, 4623, 13762411, E03C 105, F16K 3106

Patent

active

056513844

ABSTRACT:
An infrared proximity sensing circuit for use with sanitary fixtures to control water flow can have an ambient light proximity sensor which can control the period at which the circuit and the sensor are activated or the amplitude of the transmitted infrared power to conserve battery power when the circuit is a battery powered one. The ambient light sensor detects the ambient brightness and the time period of the circuit and the proximity sensor is changed upon the detected ambient brightness falling below the threshold brightness.

REFERENCES:
patent: 4722372 (1988-02-01), Hoffman et al.
patent: 5063622 (1991-11-01), Tsutsui et al.

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