US PATENT SUBCLASS 285 / 339
.~ Wedge


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

335  DF  PACKED {20}
339.~ Wedge {4}
340  DF  .~.~> Toggle ring type
341  DF  .~.~> Double wedge surfaces
342  DF  .~.~> Pushed
343  DF  .~.~> Compressed


DEFINITION

Classification: 285/339

(under subclass 335) Subject matter comprising wedge means to control the positioning or shape of the packing or which itself prevents leakage.

(1) Note. These are mostly wedge rings which are contracted into gripping relation (by pushing, compressing, etc) with a pipe member to thereby provide a flange equivalent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, for a coupling including a wedge having a frangible connection to the compressor (e.g., screw thimble).

104+, for pipe grasping wedge rings in a coupling with a fluid pressure sealing means.

232, for conduit grasping means in a flexible joint between rigid members.

249, for a wedge ring in nonmetal to metal couplings. 295.2, for a wedge ring-type packing filler in a molded joint.

323, for a wedge bushing in a movable jaw coupling.