US PATENT SUBCLASS 277 / 561
.~.~.~ Intermediate flexible bending portion

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}
500  DF  .~ Circumferential contact seal for other than piston {13}
549  DF  .~.~ Peripheral radially sealing flexible projection (e.g., lip seal, etc.) {12}
561.~.~.~ Intermediate flexible bending portion

DEFINITION

Classification: 277/561

Intermediate flexible bending portion:

(under subclass 549) Peripheral, radially sealing, flexible projection wherein the flexible projection has radially opposed ends and has a pliant and resilient wall structure therebetween intended to provide greater flexibility.