Circuit breaker retractable handle mechanism

Details Circuit breaker retractable handle mechanism Circuit breaker retractable handle mechanism

1993-01-04

1994-06-07

Luebke, Renee S.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200332, 200337, H01H 304

Patent

active

053191684

ABSTRACT:
A retractable handle mechanism for controlling the operating handle of a circuit breaker. The handle mechanism consists of a housing which may be mounted on an electrical enclosure in which the circuit breaker may be disposed. Pivotally attached to the housing is a first lever which is movable between an on position and an off position. Retractably attached to the first lever is a second lever which is movable between a first position substantially adjacent the first lever and a second position substantially extended away from the first lever. The retractable handle mechanism may also be equipped with a lever restraining mechanism which allows the second lever to be non-movably disposed in either its first position or its second position. The retractable handle mechanism may also be equipped with a lever off locking mechanism which prevents the first lever from being moved from the off position to the on position.

REFERENCES:
patent: 1928487 (1933-09-01), Hammerly
patent: 3159048 (1964-12-01), Clifford
patent: 3821532 (1974-06-01), Isaac, Jr. et al.
patent: 4115669 (1978-09-01), Cali
patent: 4150271 (1979-04-01), McMillen
patent: 4465911 (1984-08-01), Ootsuka
patent: 5193666 (1993-03-01), Markowski et al.

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