Light switch with delayed turnoff

Details Light switch with delayed turnoff Light switch with delayed turnoff

1975-11-03

1978-04-04

Schaefer, Robert K.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

315194, 315360, H01H 700, H01H 4300

Patent

active

040829618

ABSTRACT:
An improved switch for controlling electrical circuits comprising a conventional mechanical on/off switch employing a solid state electronic network connected in parallel therewith for providing a current path for a limited period of time following the opening of the mechanical switch thereby producing a delay in the de-energization of the circuit.

REFERENCES:
patent: 3221211 (1965-11-01), Murphy et al.
patent: 3558996 (1971-01-01), Mitchell et al.
patent: 3641397 (1972-02-01), Elliot et al.
patent: 3680539 (1972-08-01), Savage et al.
patent: 3764832 (1973-10-01), Stettner
patent: 3790848 (1974-02-01), Lai

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