US PATENT SUBCLASS 277 / 471
.~.~.~ Thermal expansion feature


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}
434  DF  .~ Piston ring or piston ring expander or seat therefor {15}
467  DF  .~.~ Particular piston ring expander {12}
471.~.~.~ Thermal expansion feature


DEFINITION

Classification: 277/471

Thermal expansion feature:

(under subclass 467) Particular piston ring expander wherein the piston ring expander is responsive to heat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

931+, for a seal for other than a piston ring expander including a temperature responsive feature having a temperature responsive feature.