US PATENT SUBCLASS 318 / 381
.~.~.~ With field or secondary circuit control

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

Internet Version by PATENTEC © 1999      Terms of Use


318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

362  DF  BRAKING {7}
375  DF  .~ Dynamic braking {2}
379  DF  .~.~ Locally closed armature circuit {2}
381.~.~.~ With field or secondary circuit control

DEFINITION

Classification: 318/381

(under subclass 379) Subject matter in which means are provided for controlling the field or secondary circuit of the motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

493, and the subclasses specified in the Notes thereto, for other motor control systems having both armature circuit control and field circuit control.

521, and the subclasses specified in the Search Notes thereto, for other motor control systems having field or secondary circuit control.