F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/4
F16L 59/16 (2006.01) F16L 13/02 (2006.01) F16L 25/00 (2006.01)
Patent
CA 1161880
MULTILAYER JOINT ABSTRACT The invention is directed to a multilayer pipe joint and, more particularly, to a pipe joint for effec- tively joining sections of pipe having an outer metal casing, an inner plastic pipe, and an annular cement grout sleeve. The joint comprises a dual material ring which is at least partially fitted within a recessed annular space at the end of each multilayer pipe section. The metal casing may be welded to the outer steel component of the ring, and the inner plastic pipe is sealed against the plastic component of the pipe.
401161
Meredith & Finlayson
Unisert Systems Inc.
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