US PATENT SUBCLASS 318 / 557
.~.~.~ Intermittent or step-by-step operation

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

543  DF  THREE-OR-MORE-POSITIONS MOTOR CONTROLLER SYSTEMS {6}
552  DF  .~ Power-actuated controllers {2}
555  DF  .~.~ Electromagnetic actuated {2}
557.~.~.~ Intermittent or step-by-step operation

DEFINITION

Classification: 318/557

(under subclass 555) Subject matter in which the electromagnetic actuating means is a motor having an intermittent or step-by-step movement in a single direction of operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

135, for miscellaneous motor systems in which the motor, which is the load device in the system, is a linear-movement motor.

556, for this subject matter where the motor for actuating the controller is a reciprocating or oscillating electromagnetic means (including electric motors).