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 1102848
IMPROVED PIPE SECTION AND COUPLING Abstract of the Disclosure This invention relates to an oilfield flow line pipe section with a connector on the end thereof for releasably 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 to ends thereof for use in releasably connecting sections together. A compressible seal is carried by the tubing adjacent one end thereof for sealing connections to other sections. A frusto-conical sealing surface is formed on the tubing end opposite the compressible seal for sealingly engaging the seal on an adjacent connected section. The apex angle of the cone of the sealing surface, the compressibility of the seal, the lead of and the friction between the threads and the outside diameter of the pipe are so interrelated that the necessary torque to connect the sections together by threaded engagement and to provide an effective seal by compression of the seal is less than the torque an ordinary worker can apply solely by hand to the section whereby hand makeup of the connection is possible.
349951
Centron Corporation
Kirby Eades Gale Baker
LandOfFree
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