Water tap

An automatic tap has a differential light sensor 10 adapted for mounting on the water outlet nozzle of the tap, the sensor having an infra-red transmitter T and a pair of radiation receiving elements R. The transmitter T is positioned closer one receiving element R than the other, and that one recei...

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Bibliographische Detailangaben
Hauptverfasser:	EMILIOS ARISTODIMOU, THEODOROS MASTICHIADIS
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER FIXED CONSTRUCTIONS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SEWERAGE SINKS TESTING WATER SUPPLY
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Beschreibung
Zusammenfassung:	An automatic tap has a differential light sensor 10 adapted for mounting on the water outlet nozzle of the tap, the sensor having an infra-red transmitter T and a pair of radiation receiving elements R. The transmitter T is positioned closer one receiving element R than the other, and that one receiving element R has an optical filter 12 associated therewith. A control circuit operates on the outputs of the receiving elements R and causes an electrical water flow valve to be operated dependent upon the detection of the presence of an object e.g. hands beneath the sensor.