US PATENT SUBCLASS 188 / 307
.~.~.~ Resilient or radially urged vane

Current as of: June, 1999
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188 /   HD   BRAKES

266  DF  INTERNAL-RESISTANCE MOTION RETARDER {29}
297  DF  .~ Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) {7}
306  DF  .~.~ Arcuately oscillating thrust member {3}
307.~.~.~ Resilient or radially urged vane

DEFINITION

Classification: 188/307

(under subclass 306) Device wherein said member comprises a yieldable blade or comprises a blade having a portion biased away from said shaft or hub.