F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 15/00 (2006.01) B21D 39/04 (2006.01) F16L 15/04 (2006.01) F16L 27/08 (2006.01) F16L 27/12 (2006.01) F16L 55/18 (2006.01)
Patent
CA 2200289
A coupling for making a pressure tight, threaded connection with two axially aligned plain end pipe joints is disclosed. The coupling comprises a tubular member having internal screw threads adjacent opposite ends of the tubular member. The threads form a spiral groove in the outer surface of each of two aligned plain end pipe joints upon relative rotation between the pipe and the coupling to form threaded connections with the pipe joints when the coupling is rotated relative to the pipe joints. The coupling configured as a swivel union can also be used to connect a new section in a pipeline in place of a damaged section.
Cette invention concerne un raccord étanche à visser servant à réunir deux tuyaux à extrémité lisse co-alignés. Le raccord comporte un élément tubulaire à filetage intérieur à ses deux extrémités opposées. Les filetages forment une rainure spiralée dans la paroi extérieure de chacun des deux tuyaux à extrémité lisse co-alignés lorsqu'on fait tourner le raccord et un des tuyaux l'un par rapport à l'autre pour réaliser un raccordement vissé. Le raccord étant un raccord union orientable, il peut également servir à l'insertion d'un nouveau tronçon de tuyau dans un pipeline, en remplacement d'une section endommagée.
Badrak Robert P.
Roche Joseph R.
Finlayson & Singlehurst
Hydril Company
LandOfFree
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