F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 47/00 (2006.01) B29C 47/00 (2006.01) B29D 23/00 (2006.01) F16L 9/12 (2006.01) F16L 9/18 (2006.01) F16L 11/15 (2006.01)
Patent
CA 2464245
A piece of corrugated pipe cut from a longer length of pipe is provided with a pipe coupling part by subjecting one or more of the corrugation crests on the pipe to heat and pressure. This reshapes the one or more corrugations to form a seal receiving recessed spigot on the piece of pipe.
Lupke Manfred A. A.
Lupke Stefan A.
Dennison Associates
Lupke Manfred A. A.
Lupke Stefan A.
LandOfFree
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