US PATENT SUBCLASS 285 / 349
.~ Supplemental packing socket

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

335  DF  PACKED {20}
349.~ Supplemental packing socket {1}
350  DF  .~.~> Extrusion recess

DEFINITION

Classification: 285/349

(under subclass 335) Subject matter wherein the packing means is carried in a recess or auxiliary socket in a socket member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331, for an annular socket-type coupling interface.

336, for cooperating opposed packing grooves.

374+, for a packed socket-type joint.