Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1995-04-25
1996-08-20
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250221, 4304, 4623, G01J 510, E03C 103
Patent
active
055481191
ABSTRACT:
A sensor assembly for use in a toilet room for detecting the adjacent presence of the user of a toilet room device has a body with a hollow threaded mounting shank extending outwardly therefrom. The body has a platform and there is an upwardly extending wall on the platform which defines a chamber. An infrared transmitter and an adjacent infrared receiver are positioned within the chamber on a P.C. board. There is an electrical cable attached to the mounting board and which extends through the threaded shank. A shroud extends about the transmitter and receiver and has a pair of adjacent openings in alignment with the transmitter and receiver. The wall has an infrared transparent window in alignment with the transmitter and receiver openings in the shroud. A cap extends over the wall, chamber and window and is seated upon the platform. The cap has an opening in alignment with the window whereby infrared signals from and to the infrared transmitter and receiver may pass through the cap opening and transparent window for use in detecting the presence of a person adjacent the sensor assembly.
REFERENCES:
patent: 5025516 (1991-06-01), Wilson
Fields Carolyn E.
Sloan Valve Company
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