Electric switch

Details Electric switch Electric switch

2007-03-20

2007-03-20

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

C361S179000, C327S517000

Reexamination Certificate

active

10474662

ABSTRACT:
An electric switch (1) comprising a capacity sensor circuit (2) provided with a signal input (3) arranged to be connected to an actuating line, and which is provided with a relay device (4) arranged to feed a current to a load line (7) from a power source (6) in response to a capacitive influence along said actuating line. According to the invention the signal input (3) of the sensor circuit (2) is arranged to be connected to the load line (7) in such a manner that the load line will constitute said actuating line.

REFERENCES:
patent: 2863472 (1958-12-01), Coles et al.
patent: 3811054 (1974-05-01), Wern et al.
patent: 3889132 (1975-06-01), Vreeland
patent: 4494012 (1985-01-01), Coker
patent: RE33285 (1990-07-01), Kunen
patent: 5841617 (1998-11-01), Watkins et al.
patent: 6075356 (2000-06-01), Kovacs
patent: 355719 (1973-04-01), None

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