US PATENT SUBCLASS 277 / 351
.~.~.~.~ Peripheral radially sealing flexible projection (e.g., lip seal, etc.)

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}
346  DF  .~ Diverse and distinct dynamic seals {3}
347  DF  .~.~ Close proximity seal (e.g., contactless, fluent, etc.) {2}
350  DF  .~.~.~ And circumferential contact seal {1}
351.~.~.~.~ Peripheral radially sealing flexible projection (e.g., lip seal, etc.)

DEFINITION

Classification: 277/351

Peripheral radially sealing flexible projection (e.g., lip seal, etc.):

(under subclass 350) Circumferential contact seal wherein the seal is a pliant or resilient extension having a tip for relatively movable contact to an inner or outer perimeter of one of the parts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

309, for a process of dynamic sealing employing a peripheral, radially sealing, flexible projection (e.g., lip seal, piston cup, etc.).

549+, for a dynamic, circumferential contact seal for other than a piston having a peripheral, radially sealing, flexible projection (e.g., lip seal, etc.).