Apparatus for preventing unwanted operation of sensor activated

Details Apparatus for preventing unwanted operation of sensor activated Apparatus for preventing unwanted operation of sensor activated

1987-04-08

1989-02-21

Watkins, Donald

Baths, closets, sinks, and spittoons

Flush closet

Urinals only

4305, E03D 1300, E03D 510

Patent

active

048052477

ABSTRACT:
A flushing system for a sanitary disposal device, such as a urinal or a water closet, including a flush valve, a flush valve actuator and external controls to control the activation of the flush valve to predetermine the time when the flush valve is rendered operative to be activated, and a sensor responsive circuit responsive to the receipt of infrared rays transmitted or reflected from a particular area or volume relative to the sanitary disposal device for activating the sensor responsive circuit to cause the flush valve to be rendered operative to flush the sanitary disposal device, and a control to provide for adjustment in the field of the particular area or volume which is to render the sensor responsive circuit activated.

REFERENCES:
patent: 3371353 (1968-03-01), Filliung
patent: 4309781 (1982-01-01), Lissau
patent: 4471498 (1984-09-01), Robertshaw
patent: 4570272 (1986-02-01), Kawaguchi et al.
patent: 4624017 (1986-11-01), Foletta
patent: 4667350 (1987-05-01), Ikenaga et al.
patent: 4742583 (1988-05-01), Yoshida et al.

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