US PATENT SUBCLASS 277 / 618
.~.~.~ Axially related or embedded coil spring

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}
602  DF  .~ Contact seal for a pipe, conduit, or cable {10}
616  DF  .~.~ Having associated mounting or retaining feature {4}
618.~.~.~ Axially related or embedded coil spring

DEFINITION

Classification: 277/618

Axially related or embedded coil spring:

(under subclass 616) Mounting or retaining feature wherein the mounting or retaining feature is a helically wound annular spring coaxial to or encapsulated by the seal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

554, for a dynamic, circumferential contact seal for other than a piston having a peripheral radially sealing projection biased by an embedded spring.

557, for a dynamic, circumferential contact seal for other than a piston having a peripheral radially sealing projection biased by an axially extending helical or spiral spring.

627, for a static, contact seal intended for use on a pipe, conduit, or cable having a particular material or construction.