US PATENT SUBCLASS 277 / 486
.~.~.~ Bias feature adjoining opposed ends of split or segmented piston ring

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

345  DF  SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL) {10}
434  DF  .~ Piston ring or piston ring expander or seat therefor {15}
467  DF  .~.~ Particular piston ring expander {12}
486.~.~.~ Bias feature adjoining opposed ends of split or segmented piston ring

DEFINITION

Classification: 277/486

Bias feature adjoining opposed ends of split or segmented piston ring:

(under subclass 467) Particular piston ring expander wherein the piston ring expander is contacting or near a piston ring divided into portions forming facing ends along its perimeter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

487, for a segmented piston ring expander.

493, for a segmented piston ring.