Hand presence activated water faucet controller

Details Hand presence activated water faucet controller Hand presence activated water faucet controller

1986-08-25

1988-08-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340556, G01V 904

Patent

active

047679220

ABSTRACT:
An automatic faucet control including a radiation emitter directing radiation into the area of a sink where hands are to be washed and a detector positioned to receive radiation reflected from the hands to activate the water supply. The flow of water terminates when the hands are removed.

REFERENCES:
patent: 3480787 (1969-11-01), Johansen
patent: 3576277 (1971-04-01), Blackmon
patent: 3670167 (1972-06-01), Forbes
patent: 4047023 (1977-09-01), Key et al.

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