Circuit breaker motor operator variable drive coupling apparatus

Details Circuit breaker motor operator variable drive coupling apparatus Circuit breaker motor operator variable drive coupling apparatus

1980-06-18

1981-11-10

Little, Willis

Electricity: circuit makers and breakers

Liquid contact

Time delay

200153G, 200330, 200153SC, 335173, 335 86, H10H 330

Patent

active

043000274

ABSTRACT:
Apparatus drivingly couples a rotary motor operator mechanism to a reciprocating circuit breaker operator member such as to provide a braking zone intermediate the end of an operating member charging stroke and the start of an operating member return stroke during which the deactivated motor operator mechanism is brought to a stop without disturbing the operator member in its home position. Apparatus includes a latch for latching the operator member in its home position during the braking zone and a link assembly constructed to accommodate shortening of its effective drive length while a spring absorbs the kinetic energy of the motor operator mechanism. By the conclusion of the braking zone, the operator member is unlatched from its home position, and the spring discharges to propel the operator member to its return stroke while re-establishing the full effective driving length of the link assembly, thereby rendering the operator member charging and return stroke lengths equal.

REFERENCES:
patent: 2581181 (1952-01-01), Favre
patent: 3508178 (1970-04-01), Chabaur et al.
patent: 3689721 (1972-09-01), McGuffie
patent: 4042896 (1977-08-01), Powell et al.
patent: 4153828 (1979-05-01), Barkan
patent: 4234772 (1980-11-01), Rask
patent: 4245140 (1981-01-01), Jences et al.

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