US PATENT SUBCLASS 277 / 389
.~.~.~.~ And bellows or diaphragm

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}
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}
389.~.~.~.~ And bellows or diaphragm

DEFINITION

Classification: 277/389

And bellows or diaphragm:

(under subclass 387) Fluid pressure axial bias wherein the fluid pressure pushes against a flexible wall member to create axial bias.

SEE OR SEARCH THIS CLASS, SUBCLASS:

315, for a process of static sealing employing a flexible

sleeve, boot, or diaphragm.

391+, for a relatively rotatable, radially extending, sealing face member (e.g., face, mechanical, etc.) including a flexible sleeve, boot, or diaphragm to provide a secondary seal or driving connection therefor.

504, for a dynamic, circumferential contact seal for other than a piston that accommodates gyratory or oscillatory motion by using a flexible connection having static contact between the seal and one of the relatively movable parts.

634+, for a static, contact, flexible sleeve, boot, or diaphragm seal for other than an internal combustion engine, or a pipe, conduit, or cable.