F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/63
F16L 25/00 (2006.01)
Patent
CA 1102847
IMPROVED PIPE SECTION AND COUPLING Abstract of the Disclosure This invention relates to an oilfield flow line pipe section having a connector fitted to the end thereof for connecting a plurality of sections together in series. The section is comprised of a length of tubing having mating male and female threads formed on the tubing adjacent ends thereof for use in connecting sections together. A compressible seal is mounted on the tubing adjacent one end. A seal engaging surface is formed on the tubing adjacent the end which is opposite the compressible seal. The surface has a frusto-conical section shape. The lead of the male and female threads is related to the apex angle of the sealing surface and to the allowable diametric clearance for the effective sealing of the seal for providing effective seal engagement between the seal and the seal engaging surface during at least 360 degrees of relative axial rotation between two connected sections while providing thread engagement whereby interconnected sections can be relatively rotated at least one full turn while still providing a seal therebetween.
349950
Centron Corporation
Kirby Eades Gale Baker
LandOfFree
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