Apparatus and method for starting an electric motor

Details Apparatus and method for starting an electric motor Apparatus and method for starting an electric motor

2007-12-18

2007-12-18

Duda, Rina (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S132000, C318S254100

Reexamination Certificate

active

11145052

ABSTRACT:
An apparatus and method of starting an electric motor (having a rotor that rotates in a given direction during steady state operation from the at rest position) generates a preliminary signal that causes the rotor to rotate in an opposite direction to that of the given direction. The method and apparatus also begin rotation of the rotor in the given direction after the rotor rotates in the opposite direction.

REFERENCES:
patent: 4494028 (1985-01-01), Brown
patent: 5640075 (1997-06-01), Brasseur et al.
patent: 2005/0109138 (2005-05-01), Tavarez

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