US PATENT SUBCLASS 92 / 124
.~.~ With resiliently biased vane peripheral portion

Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

120  DF  OSCILLATING WORKING MEMBER OR CYLINDER THEREFOR {1}
121  DF  .~ Oscillatory shaft with radially extending vane {4}
124.~.~ With resiliently biased vane peripheral portion

DEFINITION

Classification: 92/124

(under subclass 121) Apparatus in which the blade-like member has a portion along the periphery thereof which is movable relative to other portions of said blade-like member, and spring means associated with said blade-like member for urging said portion away from said other portions.