US PATENT SUBCLASS 310 / 247
.~.~.~.~.~.~ Axial spring

Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

10  DF  DYNAMOELECTRIC {5}
40 R  DF  .~ Rotary {28}
219  DF  .~.~ Current collectors {7}
238  DF  .~.~.~ Fixed structure {2}
239  DF  .~.~.~.~ Brush holders or rigging {6}
245  DF  .~.~.~.~.~ Slidable brush {2}
247.~.~.~.~.~.~ Axial spring

DEFINITION

Classification: 310/247

(under subclass 245) Subject matter having an axial spring to press upon the brush so as to exert pressure between the brush and the commutator or slip ring.