Pipe couplings

Details Pipe couplings Pipe couplings

F - Mech Eng,Light,Heat,Weapons

16

L

285/43

F16L 13/00 (2006.01)

Patent

CA 1063644

ABSTRACT OF THE DISCLOSURE A pipe coupling comprising a sleeve which is fitted over the adjacent ends of the pipe sections. The sleeve has sealing means for sealing the sleeve against the pipe and gripping means for gripping the pipe. The sealing means com- prises an annular groove which accommodates an annular tire the interior of which communicates with the exterior of the sleeve through a bore in the wall of the sleeve. The gripping means comprises arcuate groove sections on the inside of the sleeve which accommodates a tubular member or members which communicate with the exterior through bores in the wall of the sleeve, and jaw sectors with teeth which bite into the outside of the pipe. The tubular member or members and the annular tire are filled with a hardenable composition and maintained under pressure until set to force the sealing member into seal- ing contact against the outer surface of the pipe and cause the gripping teeth to bite into the outer surface of the pipe.

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