US PATENT SUBCLASS 388 / 835
.~.~ By control of motor structure

Current as of: June, 1999
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388 /   HD   ELECTRICITY: MOTOR CONTROL SYSTEMS

825  DF  OPEN LOOP SPEED CONTROL SYSTEM FOR DC MOTOR WITH COMMUTATOR {3}
830  DF  .~ Analog armature control {7}
835.~.~ By control of motor structure {1}
836  DF  .~.~.~> Position or number of brushes

DEFINITION

Classification: 388/835

By control of motor structure:

(under subclass 830) Subject matter wherein running speed is controlled by altering the structural relationship of motor components.