US PATENT SUBCLASS 277 / 306
.~ Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.)


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

300  DF  PROCESS OF DYNAMIC SEALING {6}
306.~ Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) {1}
307  DF  .~.~> Formed by flexible projection


DEFINITION

Classification: 277/306

Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.):

(under subclass 300) Process of dynamic sealing including at least one of a pair of opposing surface members relatively rotating at the joint or juncture that defines a sealing face and wherein the joint or juncture is at an angle to a rotational axis formed between the relatively movable parts.

(1) Note. In a hydrodynamic relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) a distance between a sealing member and a part or another sealing member will change when the rotational speed between relatively movable parts goes from normal operation to slower or non-rotational speeds whereas in a close proximity seal (e.g., contactless, fluent, etc.) the distance is not dependent upon rotational speed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

358+, for a relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.).