B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/29
B23P 11/00 (2006.01) B23P 19/00 (2006.01) B23P 21/00 (2006.01) B32B 31/00 (1980.01)
Patent
CA 1155273
METHOD AND APPARATUS FOR FORMING PLASTIC LINED COUPLINGS IN LINED PIPE ABSTRACT OF THE DISCLOSURE Disclosed are methods and apparatus for forming a plastic lining on the open end face of a section of plastic lined pipe and joining such open ends to form a fully lined coupling. A band or collar having a tapered outer diameter and inwardly projecting means for engaging the pipe is positioned to encircle the end of the pipe. A rigid flange having a central opening with dimensions conforming to the outer dimensions of the collar mates with the collar to provide means for attaching the pipe to another conduit. A plastic end face liner comprising a cylindrical tubular body with a radially extending flange is bonded to the internal surface of the pipe liner and the flange bonded to the end face of the pipe.
411718
Hunter John J.
Johnson Ernest Peter
LandOfFree
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