US PATENT SUBCLASS 277 / 569
.~.~.~ Lining or insert

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  DF  .~.~ Peripheral radially sealing flexible projection (e.g., lip seal, etc.) {12}
569.~.~.~ Lining or insert

DEFINITION

Classification: 277/569

Lining or insert:

(under subclass 549) Peripheral, radially sealing, flexible projection wherein the flexible projection includes a material layered on or inset into its surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

440+, for a piston ring having a surface of dissimilar material or hardness.