Reverse switching means for motor operator

Details Reverse switching means for motor operator Reverse switching means for motor operator

1989-06-30

1991-02-05

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With motor

335 14, 335 71, H01H 300

Patent

active

049908731

ABSTRACT:
A power drive mechanism for a circuit breaker handle which includes a reversible electrical motor, a carriage assembly and a cooperating slide plate assembly mechanically coupled to the motor shaft. The carriage assembly includes a pivotally mounted L-shaped lever, interlocked with the circuit breaker operating handle for driving the operating handle to an on position or alternatively to an off position on command. Microswitches are located at both the on position and the off position for controlling operation of the motor. The microswitches are actuated by the slide plate assembly which, in turn, is driven by the carriage assembly. The slide plate assembly is slidably mounted with respect to the carriage assembly with one or more wave washers. The slide plate assembly provides mechanical damping for the carriage assembly to minimize damage to the microswitches. The slide plate assembly also prevents the contacts in the limit switch from bouncing even though the carriage assembly may oscillate at the end of travel.

REFERENCES:
patent: 2864911 (1958-12-01), Brumfield
patent: 2870288 (1959-01-01), Schmidt
patent: 3198907 (1965-08-01), Archer et al.
patent: 4489295 (1984-12-01), Altenhof et al.
patent: 4553115 (1985-11-01), Grunert et al.
patent: 4638277 (1987-01-01), Thomas et al.
patent: 4642430 (1987-02-01), Tedesco
patent: 4642726 (1987-02-01), Matsko et al.
patent: 4656444 (1987-04-01), McKee et al.
patent: 4679018 (1987-07-01), McKee et al.

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