US PATENT SUBCLASS 318 / 73
.~.~.~.~.~ Synchronously operated impedance detectors

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

34  DF  PLURAL, DIVERSE OR DIVERSELY CONTROLLED ELECTRIC MOTORS {22}
66  DF  .~ Running-speed control {4}
68  DF  .~.~ Relative motor speed control {5}
69  DF  .~.~.~ With speed-difference detector {2}
70  DF  .~.~.~.~ Electrical-type detectors {4}
73.~.~.~.~.~ Synchronously operated impedance detectors

DEFINITION

Classification: 318/73

(under subclass 70) Subject matter in which the detector comprises an impedance device having one or more parts driven synchronously with one or more motors and one or more other parts of the impedance driven synchronously with one or more other motors; or one or more parts of an impedance is actuated synchronously with one or more motors and one or more parts of another impedance device is actuated synchronously with one or more other motors.