US PATENT SUBCLASS 318 / 827
.~.~.~.~ Frequency of secondary current

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

727  DF  INDUCTION MOTOR SYSTEMS {12}
818  DF  .~ Secondary circuit control {3}
821  DF  .~.~ Impedance control of secondary circuit {2}
822  DF  .~.~.~ Responsive to motor condition {4}
827.~.~.~.~ Frequency of secondary current

DEFINITION

Classification: 318/827

Frequency of secondary current:

(under subclass 822) Subject matter wherein the motor characteristic is the frequency of the voltage induced in the secondary member or the relative frequencies of the current in the primary and the secondary members of the motor.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

129, for frequency controlled switching systems.

323, Electricity: Power Supply or Regulation Systems,

293, 298 for electrical condition controlled impedance

systems.