US PATENT SUBCLASS 318 / 715
.~.~.~ Responsive to rotor speed or rotor driven member

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

700  DF  SYNCHRONOUS MOTOR SYSTEMS {7}
705  DF  .~ Synchronization systems {4}
712  DF  .~.~ With field excitation application {3}
715.~.~.~ Responsive to rotor speed or rotor driven member

DEFINITION

Classification: 318/715

Responsive to rotor speed or rotor driven member:

(under subclass 712) Subject matter wherein the switching means is actuated by means responsive to the angular velocity of the rotor or to movement of a member driven by the rotor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

461+, for speed or rate of movement including tachometer-type detectors for controlling motor circuits generally.

717+, for synchronous motor field circuits, particularly subclass 719 for synchronous motor speed responsive field power sources.