Remote control circuit breaker

Details Remote control circuit breaker Remote control circuit breaker

1985-08-13

1986-11-18

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 20, 335 71, 74411, 744247, 74425, 74 8914, H01H 7500, H01H 7700, H01H 8300

Patent

active

046238590

ABSTRACT:
An electric circuit breaker capable of being opened and closed from a remote location. The circuit breaker includes a stationary contact, a movable contact mounted on a carrier and a trip mechanism that trips the circuit breaker, moving the carrier to an open position upon the occurrence of an overcurrent. The remote control assembly opens and closes the circuit breaker independently of the trip mechanism. Upon receiving a signal from a timer switch, a motor operates, rotating a gear spring connected to the motor shaft. An actuator has a tooth positioned between the wire layers of the gear spring. As the gear spring rotates, the tooth moves toward the motor, pivoting the actuator. An operating rod, connected to both the actuator and the carrier, pulls the carrier to open the contacts as the actuator rotates. When the contacts reach the open position, the actuator hits a switch to shut off the motor.

REFERENCES:
patent: 2902560 (1959-09-01), Stanback et al.
patent: 3198908 (1960-11-01), Staak
patent: 3332043 (1967-07-01), Camp
patent: 3808905 (1974-05-01), Metzinger
patent: 4276528 (1981-06-01), Ohara et al.

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