Circuit breaker for small size motors

Details Circuit breaker for small size motors Circuit breaker for small size motors

1974-04-29

1976-02-10

Scott, James R.

Electricity: circuit makers and breakers

Special application

Control by direction of rotation of shaft or spindle

46243M, 200153N, 310116, H01H 316, A63H 3326, H02K 2360

Patent

active

039379116

ABSTRACT:
An automatic circuit breaker senses the remaining charge in series connected batteries driving a motor whose rotor shaft bearing and stator are rotatably supported by a fixed member, sensing the reaction torque of the motor. The power circuit is broken when the reaction torque drops below a predetermined value indicating that at least one of the batteries has discharged beyond a certain point to prevent reverse charging of the discharged battery.

REFERENCES:
patent: 1587645 (1926-06-01), Hicquet
patent: 2677021 (1954-04-01), Baumgardner
patent: 2754383 (1956-07-01), Green
patent: 2814698 (1957-11-01), Miller, Sr.
patent: 2923092 (1960-02-01), Reiser
patent: 3447259 (1969-06-01), Cagen
patent: 3807087 (1974-04-01), Staats et al.

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