US PATENT SUBCLASS 277 / 448
.~.~.~ Material 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}
447  DF  .~.~ Floating piston ring {1}
448.~.~.~ Material other than metal


DEFINITION

Classification: 277/448

Material other than metal:

(under subclass 447) Floating piston ring consisting of a substance different from metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

468, for a separate particular piston ring expander means

made out of a material other than metal.