US PATENT SUBCLASS 277 / 549
.~.~ Peripheral radially sealing flexible projection (e.g., lip seal, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.~.~ Peripheral radially sealing flexible projection (e.g., lip seal, etc.) {12}
550  DF  .~.~.~> Made of metal or is a scraper
551  DF  .~.~.~> Having installation, removal, assembly, disassembly, or repair feature
552  DF  .~.~.~> Having pressure relief or venting feature
553  DF  .~.~.~> Bias feature other than nominal garter spring {5}
559  DF  .~.~.~> Hydrodynamic sealing feature
560  DF  .~.~.~> Dimensional aspect of the flexible projection (e.g., angle, length, radius, thickness, etc.)
561  DF  .~.~.~> Intermediate flexible bending portion
562  DF  .~.~.~> Plural peripheral radially sealing flexible projections {3}
569  DF  .~.~.~> Lining or insert
570  DF  .~.~.~> Made entirely of fluorocarbon material
571  DF  .~.~.~> Wear sleeve
572  DF  .~.~.~> Particular mounting, frame, casing, or reinforcement feature {3}

DEFINITION

Classification: 277/549

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

(under subclass 500) Dynamic, 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 relatively movable 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.).

349, for diverse and distinct dynamic seals including a close proximity seal (e.g., contactless, fluent, etc.), a relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) and a circumferential peripheral radially sealing flexible projection (e.g., lip seal, etc.).

351, for diverse and distinct dynamic seals including a close proximity seal (e.g., contactless, fluent, etc.) and a peripheral radially sealing flexible projection (e.g., lip seal, etc.).

353, for diverse and distinct dynamic seals including a relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) and a circumferential peripheral radially sealing flexible projection (e.g., lip seal, etc.).

394+, for a relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) including a secondary mounting seal having a peripherally radially sealing flexible projection (e.g., lip seal, etc.). 402, for a relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) having a flexible projection (e.g., lip seal, etc.) configuration.

436+, for a piston ring having a peripheral radially sealing flexible projection (e.g., a piston cup, etc.).

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,

147+, for a plain radial bearing where the seal is a peripheral radially sealing flexible projection extending axially of a center of a seal seat to contact the relatively moving element to be sealed or subclasses 484+ for a radial antifriction bearing where the seal is a peripheral radially sealing flexible projection contacting a relatively rotating

surface parallel to the axis of rotation.

464, Rotary Shafts, Gudgeons, Housings and Flexible Couplings for Rotary Shafts,

131, for a drive coupling that accommodates misaligned or angularly related axes through a radially directed pin having a particular bearing cup surrounding the pin end and a flexible seal or subclass 133 for a drive coupling that accommodates misaligned or angularly related axes through a radially directed pin and a flexible seal.