US PATENT SUBCLASS 318 / 55
.~.~.~ With running-speed control

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}
53  DF  .~ Plural, diverse motor controls {4}
54  DF  .~.~ Motor-reversing {3}
55.~.~.~ With running-speed control {1}
56  DF  .~.~.~.~> And braking

DEFINITION

Classification: 318/55

(under subclass 54) Subject matter in which means are provided for also controlling the running-speed of the motors.

(1) Note. When the means which is used for controlling the acceleration and/or deceleration of the motors is also used

for controlling the running speed of the motors, no other running-speed control means being claimed, classification will be in an appropriate subclass which includes acceleration control. See subclasses 58, 61, 64 below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

59+, and the subclasses specified in the search Notes thereto for other plural motor systems having means for running-speed control of plural motors, and another means for a different motor control operation.

64, and the subclasses specified in the Notes to the definition of that subclass for other plural motor systems having means for controlling the acceleration of the motor and means for performing a different type of motor control operation. See Note (1) above.

257+, for single motor systems having the combination of reversing and running-speed controls.