US PATENT SUBCLASS 318 / 74
.~.~.~.~.~ Synchronously actuated switch 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}
74.~.~.~.~.~ Synchronously actuated switch detectors {1}
75  DF  .~.~.~.~.~.~> Plural switches connected in series

DEFINITION

Classification: 318/74

(under subclass 70) Subject matter in which the detector comprises one or more electric switches one or more parts of which switches are operated synchronously with one or more motors and one or more other parts of the switches are operated synchronously with one or more other motors.