Time delay switch

Details Time delay switch Time delay switch

1977-11-30

1980-02-19

Scott, James R.

Electricity: circuit makers and breakers

Retarded

Chain or flexible drive

200308, H01H 4300

Patent

active

041896289

ABSTRACT:
A time delay switch has a hollow housing forming a liquid reservoir and having slidably disposed thereon an actuator movable between a switch open position and a switch closed position. The actuator is biased as by a suitable spring toward one of the switch open position and the switch closed position so that the actuator can be preset to one position so as to permit movement of the actuator toward the other position through the liquid reservoir under the bias of the spring in a predetermined period of time.

REFERENCES:
patent: 2651166 (1953-09-01), Dorfman
patent: 2800538 (1957-07-01), Kuhn
patent: 3155785 (1964-11-01), Frey
patent: 3375335 (1968-03-01), Schultz
patent: 3548124 (1970-12-01), Tollerud et al.

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