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 1260983
Abstract of the Invention A connector (20) for oilwell tubing and the like is disclosed which has the same outer diameter (21) as does the tubing joints (8 & 9) that it connects. Tubing joints are formed internally with a tapered thread (6 & 7) having a loadbearing flank angle (75° or more) that negates pullout tendancy. A mating coupling (2) having external threads (3 & 4) may be provided with a bore 10 so as to clear a driftbar. Coupling (2) may be provided with bore (13) extending from (14 to 15) so as to develop substantially, a 100% joint strength.
468610
Macrae & Co.
Watts John D.
LandOfFree
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