US PATENT SUBCLASS 318 / 90
.~ Acceleration 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}
90.~ Acceleration control {4}
91  DF  .~.~> Accelerating motors in succession or selectively
92  DF  .~.~> Control of both armature (or primary) and field (or secondary) circuits {1}
94  DF  .~.~> Armature or primary circuit control {1}
97  DF  .~.~> Field or secondary circuit control

DEFINITION

Classification: 318/90

(under subclass 34) Subject matter in which means are provided for controlling the acceleration and/or deceleration of two or more electric motors.

(1) Note. See the class definition, Glossary for a definition of "Acceleration Control".

SEE OR SEARCH THIS CLASS, SUBCLASS:

64, and the subclasses specified in the Search Notes thereto, for plural motor systems having means for acceleration and/or deceleration control of two or more motors combined with another motor-operation control for the motors.

SEE OR SEARCH CLASS

388, Electricity: Motor Control Systems,

842+, and 848+ for single motor acceleration control systems with, and without, feedback, respectively.