Alternating current motor with directional rotation reliability

Electrical generator or motor structure – Dynamoelectric – Rotary

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310 72, 310 83, 74411, 74421A, H02K 710

Patent

active

047288329

ABSTRACT:
A bi-directional alternating current permanent magnet motor is disclosed that is operated with a rotational restraint that insures proper directional rotation of a load. The motor output shaft is loosly coupled to a pinion gear. In the event that the motor is unable to start in the correct direction, and inadvertently reverses itself, it is immediately unloaded. This unloading causes the motor to stop and start again in the correct direction with a momentum that typically is sufficient to run the motor and its gear train in the correct direction.

REFERENCES:
patent: 86533 (1869-02-01), Hafner
patent: 1138799 (1915-05-01), Scott
patent: 3200915 (1965-08-01), Lundin
patent: 3209877 (1965-10-01), Jordan
patent: 3347451 (1967-10-01), Vind
patent: 3448308 (1969-06-01), Pervorse et al.
patent: 3809932 (1974-05-01), Erwin
patent: 3883758 (1975-05-01), Lechner
patent: 3975652 (1976-08-01), Hammond
patent: 4296341 (1981-10-01), Guttinger
"Electric Motors & Electronic Motor Control Techniques"; I. M. Gottlieb; Howard W. Sams & Co. et al., Indianopolis; 1976; pp. 82-85.
Catalog Sheet for the Honeywell Modutrol Motor M644A-E, revised Apr., 1987, identified as form 60-2038-6.

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