US PATENT SUBCLASS 418 / 110
.~ By axially relatively moving working member sections

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

104  DF  WITH MECHANICAL SEALING {14}
110.~ By axially relatively moving working member sections

DEFINITION

Classification: 418/110

(under subclass 104) Apparatus wherein the working member comprises a plurality of axially movable portions of substantial dimension, each having a side surface movable into sealing relationship with a respective cylinder side.