US PATENT SUBCLASS 277 / 437
.~.~.~ Having particular mounting, retaining, or supporting feature


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}
436  DF  .~.~ Piston ring having peripheral radially sealing flexible projection (e.g., piston cup, etc.) {2}
437.~.~.~ Having particular mounting, retaining, or supporting feature


DEFINITION

Classification: 277/437

Having particular mounting, retaining or supporting feature:

(under subclass 436) Peripherally, radially sealing, flexible projection including specific means to fasten, secure, or back the piston ring on the piston.