Operating mechanism for use in a circuit breaker

Details Operating mechanism for use in a circuit breaker Operating mechanism for use in a circuit breaker

1982-06-08

1983-10-11

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

335 76, H01H 330

Patent

active

044094493

ABSTRACT:
An operating mechanism for use in a circuit breaker having a stationary contact and a moving contact which is turned on (closed) or off (tripped open) by using the accumulated energy of a stretched spring, the operating mechanism having a frame, a main shaft having a closing cam and an additional cam, a four-joint crank for actuating the moving contact in accordance with the movement of the main cam, a roller clutch mounted around the shaft, a bearing fitting member having an opening mounted around the roller clutch, a gear member having a stud adapted to fit within the opening of the fitting member, and an electric motor and a manually operable handle to drive the spring to accumulate energy.

REFERENCES:
patent: 3171938 (1965-03-01), Pokorny
patent: 3689721 (1972-09-01), McGuffie
patent: 4114005 (1978-09-01), Maier et al.
patent: 4152561 (1979-05-01), Maier et al.
patent: 4157083 (1979-06-01), Smith et al.

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