Manufacture of pipe couplings

Details Manufacture of pipe couplings Manufacture of pipe couplings

B - Operations, Transporting

29

C

18/688

B29C 45/16 (2006.01) B29C 45/14 (2006.01) F16L 47/06 (2006.01) F16L 47/08 (2006.01)

Patent

CA 1081419

ABSTRACT OF THE DISCLOSURE The invention provides a method of manufacturing a plastics pipe coupling of the kind comprising a tubular member of stiff plastics material and a resilient elastomeric annular sealing member secured therein for engaging a pipe end when inserted into the coupling, which method comprises preforming a first of the said members, disposing the preformed member in injection-moulding apparatus in such a way that the preformed member defines at least one mould member of said apparatus an annular moulding cavity, and injection moulding the other said member in the said cavity thereby forming the other said member bonded to the first member.

244600

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