Hand presence activated water faucet controller
First Claim
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1. Apparatus for detecting the presence of hands at a predetermined location in a sink so as to activate a water supply and to deactivate the water supply upon removal of the hands comprising:
- a source of radiation;
cylindrical lens means directing radiation from the source to produce a band of radiation proximate to the predetermined location in the sink such that in the presence of hands at the predetermined location, radiation is reflected from the hands along a first axis but upon the removal of hands from the predetermined location the reflection of radiation along the first axis ceases; and
control means positioned along the first axis to detect reflected radiation and operable in accordance therewith to produce a control signal to activate and deactivate the water supply.
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Accused Products
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.
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Citations
7 Claims
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1. Apparatus for detecting the presence of hands at a predetermined location in a sink so as to activate a water supply and to deactivate the water supply upon removal of the hands comprising:
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a source of radiation; cylindrical lens means directing radiation from the source to produce a band of radiation proximate to the predetermined location in the sink such that in the presence of hands at the predetermined location, radiation is reflected from the hands along a first axis but upon the removal of hands from the predetermined location the reflection of radiation along the first axis ceases; and control means positioned along the first axis to detect reflected radiation and operable in accordance therewith to produce a control signal to activate and deactivate the water supply. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification