US PATENT SUBCLASS 310 / 243
.~.~.~.~.~ Fluid pressure-operated

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}
243.~.~.~.~.~ Fluid pressure-operated

DEFINITION

Classification: 310/243

(under subclass 239) Subject matter having means for operating the brush rigging or holders by means of fluid pressure.

(1) Note. This subclass relates, for example, to brush rigging in which the pressure of the brush against the commutator is determined by fluid pressure.