US PATENT SUBCLASS 388 / 843
.~ Field control, or field and armature control

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


388 /   HD   ELECTRICITY: MOTOR CONTROL SYSTEMS

842  DF  CLOSED LOOP ACCELERATION CONTROL SYSTEM FOR DC MOTOR WITH COMMUTATOR {2}
843.~ Field control, or field and armature control

DEFINITION

Classification: 388/843

Field control, or field and armature control:

(under subclass 842) Subject matter in which regulation of the acceleration of the motor is effected by circuitry which controls the energization of, (1) a field winding of the motor, or (2) both a field winding and an armature winding.

SEE OR SEARCH THIS CLASS, SUBCLASS:

844+, for closed loop acceleration control systems which control an armature winding only.