F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/47.4
F16L 17/00 (2006.01) F16L 37/092 (2006.01)
Patent
CA 1050076
STAB-TYPE JOINT FOR SMOOTH END OR FLARELESS PIPE ABSTRACT OF THE DISCLOSURE A joint for connecting a smooth wall pipe to fittings or other pipes, the joint including a hollow body member having a passageway therethrough, a split gripper ring positioned and movable axially within the passageway, an elastomeric sealing ring also positioned and movable axially within the passageway and means for axially urging the gripper ring and the sealing ring apart whereby the gripper ring has improved initial grip on the pipe upon insertion of the same and the sealing ring has improved sealing characteristics over a range of positive and negative pres- sures and over a hot and cold temperature range. The external con- figuration of the split gripper ring cooperates with the internal configuration of the passageway so that the pipe can be installed axially into the body member but when pulled outwardly of the body member the gripper ring is further actuated from its initial grip- ping action to prevent removal of the pipe. The sealing ring is provided with a load on the same at all times whereby it has an initial sealing function upon insertion of the pipe and also main- tains this sealing function despite subsequent disturbances of the sealing ring by movement of the pipe. The means urging the seal- ing ring and the gripper ring axially apart also functions to make out of round pipe more round upon insertion so that the position of the sealing ring is not unduly disturbed from its seat.
266960
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