Controlled duration switch

Details Controlled duration switch Controlled duration switch

1975-05-06

1977-03-29

Scott, James R.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

200 33R, H01H 4300

Patent

active

040151395

ABSTRACT:
Switches of the kind formed by a controller with an actuator which is automatically restored to its "off" position at the end of a prescribed time interval and provides an indication shortly before the end of the interval. The controller may be manually energized or motor driven.

REFERENCES:
patent: 2319349 (1943-05-01), Safford
patent: 2899518 (1959-08-01), Moore
patent: 3603807 (1971-09-01), Erdmann
patent: 3714457 (1973-01-01), Sweeney
patent: 3819885 (1974-06-01), Moroto et al.
patent: 3828224 (1974-08-01), Hulshizer
patent: 3879332 (1975-04-01), Leone
patent: 3889132 (1975-06-01), Vreeland

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