Capacitance toilet seat switch for bidet

Details Capacitance toilet seat switch for bidet Capacitance toilet seat switch for bidet

1987-08-28

1989-06-27

Marcus, Stephen

Baths, closets, sinks, and spittoons

Flush closet

Bowl

4447, 4448, 4DIG6, A47K 322

Patent

active

048415839

ABSTRACT:
A sanitary device includes a electrically operated washing device, an operating switch, a protecting switch and a power supply connected in series to define an operating circuit. The protecting switch is under the control of a control device for detecting a variation in capacitance between two opposed electric conductors, both of which are provided in a toilet seat. Upon detection of a predetermined increase in capacitance between the conductors after a person sits down on the seat, the protecting switch is brought into closure by the control device. Thus, in spite of an unexpected closure of the operating switch due to accidental contact or mischief of a child while no person is on the seat, the washing device will not be actuated.

REFERENCES:
patent: 3551919 (1971-01-01), Forbes
patent: 3575640 (1971-04-01), Ishikawa
patent: 4087868 (1978-05-01), Gentz
patent: 4500758 (1985-02-01), Guckenheimer
patent: 4550310 (1985-10-01), Yamaguchi et al.
patent: 4562315 (1985-12-01), Avfderheide
patent: 4616368 (1986-10-01), Nagai et al.

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