(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.
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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.
