US PATENT SUBCLASS 277 / 411
.~.~ Gap or clearance

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}
409  DF  .~ Close proximity seal (e.g., contactless, fluent, etc.) {4}
411.~.~ Gap or clearance {2}
412  DF  .~.~.~> Labyrinth {7}
422  DF  .~.~.~> Floating ring or bushing

DEFINITION

Classification: 277/411

Gap or clearance:

(under subclass 409) Close proximity seal wherein the close proximity seal provides a throttling zone to oppose the flow of fluid while being free of relatively movable sealing contact.

SEE OR SEARCH CLASS

384, Bearings, for more than nominal bearing structure or detail (e.g., liner, bearing race, cage, etc.) combined with a specific seal,

488, for a radial antifriction bearing where the seal is a radially extending, annular flange approaching but not contacting a relatively rotating member to substantially but not completely close an annular opening.