US PATENT SUBCLASS 277 / 648
.~.~.~ Plural projections along sealing surface

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

590  DF  SEAL BETWEEN FIXED PARTS OR STATIC CONTACT AGAINST RELATIVELY MOVABLE PARTS {3}
628  DF  .~ Contact seal for other than internal combustion engine, or pipe, conduit, or cable {9}
644  DF  .~.~ Particular cross-sectional seal profile {3}
648.~.~.~ Plural projections along sealing surface {1}
649  DF  .~.~.~.~> Plural projections along opposite sealing surfaces

DEFINITION

Classification: 277/648

Plural projections along sealing surface:

(under subclass 644) Particular cross-sectional seal profile wherein the seal has more than one sealing extension along a side of the seal facing the part.

SEE OR SEARCH THIS CLASS, SUBCLASS:

565+, for a dynamic, circumferentially contact seal for other than a piston having plural, peripheral, radially sealing projections on a radial facing side of a single seal.

612, for a static, contact seal intended for insertion between an end-to-end pipe, conduit, or cable joint having plural extended projections.

615, for a static, contact seal intended for use on a pipe, conduit, or cable having axially spaced projections.