US PATENT SUBCLASS 418 / 114
.~.~.~ Adjustable or expandable peripheral projection

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

104  DF  WITH MECHANICAL SEALING {14}
112  DF  .~ Seal on working member periphery separates inlet and outlet ports {1}
113  DF  .~.~ Seal on working member peripheral projection engages cylinder working chamber surface (e.g., apex seals) {9}
114.~.~.~ Adjustable or expandable peripheral projection

DEFINITION

Classification: 418/114

(under subclass 113) Apparatus wherein the working member includes a protruding part that is either (1) fixedly repositionable thereon or (2) integral therewith but extendable thereon, the part being movable to sealingly engage another working chamber surface.