US PATENT SUBCLASS 318 / 542
.~.~ Having movement toward or from cooperating part (e.g., brush lifted from commutator)

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

538  DF  MOTOR STRUCTURE ADJUSTMENT OR CONTROL {3}
541  DF  .~ Brush or other current-collector control {1}
542.~.~ Having movement toward or from cooperating part (e.g., brush lifted from commutator)

DEFINITION

Classification: 318/542

(under subclass 541) Subject matter in which means are provided for moving the brush or other current-collector or

current-transfer means toward or away from its cooperating part.

(1) Note. This subclass includes means for completely separating the brushes, etc., from the cooperating part and means for merely varying or changing the contact pressure therebetween.