US PATENT SUBCLASS 418 / 135
.~.~ Spring biased

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

104  DF  WITH MECHANICAL SEALING {14}
131  DF  .~ Axially movable end wall or end wall portion {4}
135.~.~ Spring biased

DEFINITION

Classification: 418/135

(under subclass 131) Apparatus wherein a resilient mechanical means urges the end plate or wall into engagement with the working member side.