US PATENT SUBCLASS 418 / 113
.~.~ Seal on working member peripheral projection engages cylinder working chamber surface (e.g., apex seals)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.~.~ Seal on working member peripheral projection engages cylinder working chamber surface (e.g., apex seals) {9}
114  DF  .~.~.~> Adjustable or expandable peripheral projection
115  DF  .~.~.~> Weight balanced or adjustable seal
116  DF  .~.~.~> Ring seal or arcuate seal portion
117  DF  .~.~.~> With plural circumferentially spaced peripheral seals
118  DF  .~.~.~> Swinging seal
119  DF  .~.~.~> Integral peripheral and depending side seal
120  DF  .~.~.~> With axially movable side seal {1}
122  DF  .~.~.~> Spring biased {1}
124  DF  .~.~.~> Fluid biased

DEFINITION

Classification: 418/113

(under subclass 112) Apparatus wherein the working member includes a protruding (e.g., apex) portion on its periphery which is provided with a movable, expandable, adjustable or deformable means for engaging a cylinder working chamber surface to oppose the passage of working fluid therepast and wherein the movable, expandable, adjustable or movable means does not move or is a part of a member that moves incident to the expansion or contraction of the working chamber.