US PATENT SUBCLASS 277 / 553
.~.~.~ Bias feature other than nominal garter spring

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}
553.~.~.~ Bias feature other than nominal garter spring {5}
554  DF  .~.~.~.~> Embedded spring
555  DF  .~.~.~.~> Radially extending finger spring
556  DF  .~.~.~.~> Material other than metal
557  DF  .~.~.~.~> Axially extending helical or spiral spring
558  DF  .~.~.~.~> Particular fluid pressure responsive bias

DEFINITION

Classification: 277/553

Bias feature other than nominal garter spring:

(under subclass 549) Peripheral radially sealing flexible projection including means other than a nominally set forth coil wire spring that encircles the seal around its circumference to provide a radial bias for the flexible projection.

(1) Note. Dimensional aspects of a garter spring are proper for this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

545, for a dynamic, circumferentially contacting segmented ring for other than a piston having other than a nominal garter spring as a radial biasing spring element.

589, for a dynamic, circumferential contact seal for other than a piston radially backed by resilient or elastomeric member.

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,

148, for a plain radial bearing where the seal is a peripheral radially sealing flexible projection including bias means extending axially of a center of a seal seat to contact the relatively moving element to be sealed.