US PATENT SUBCLASS 318 / 248
.~ With plural, diverse or diversely connected or controlled sources of e.m.f.


Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

246  DF  SERIES MOTORS {4}
248.~ With plural, diverse or diversely connected or controlled sources of e.m.f.


DEFINITION

Classification: 318/248

(under subclass 246) Subject matter in which two or more immediate sources of e.m.f. are provided to supply electric energy to the conducting elements of a series motor.

(1) Note. Two sources of e. m. f. connected in series opposition in the circuit of a motor winding are included herein. Two circuits from a single voltage divider or from spaced sets of brushes on a single generator commutator, are examples of sources of electro-motive-force included herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

500, and the subclasses listed in the Search Notes thereto, for miscellaneous motor systems having plural sources of armature circuit supply for the motor.

530, and the subclasses specified in the Search Notes thereto, for motor systems having plural sources of supply for the field or secondary circuit of the electric motor.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems, 43+, for systems having plural sources of supply of electrical energy for a single load circuit.