US PATENT SUBCLASS 277 / 388
.~.~.~.~ Creates counter pressure

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}
358  DF  .~ Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) {9}
377  DF  .~.~ Particular axial biasing feature {3}
387  DF  .~.~.~ Fluid pressure {2}
388.~.~.~.~ Creates counter pressure

DEFINITION

Classification: 277/388

Creates counter pressure:

(under subclass 387) Fluid pressure axial bias wherein the fluid pressure generates a force opposing the axial biasing means that forces the sealing face members together to reduce the axial load exerted at the sealing face.