US PATENT SUBCLASS 277 / 468
.~.~.~ Separate and other than metal

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}
434  DF  .~ Piston ring or piston ring expander or seat therefor {15}
467  DF  .~.~ Particular piston ring expander {12}
468.~.~.~ Separate and other than metal

DEFINITION

Classification: 277/468

Separate and other than metal:

(under subclass 467) Particular piston ring expander wherein the biasing means is distinct from the piston ring and made out of a material that differs from metal.