F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 13/14 (2006.01) E21B 17/02 (2006.01) E21B 33/038 (2006.01) F16L 15/00 (2006.01) F16L 21/00 (2006.01) F16L 31/00 (2006.01)
Patent
CA 2591391
A preloaded connector to connect sealingly two pipe joints (1,2) having a common axis, comprising at least one couple of cooperating pin (4) and box (3) members, the members including load-bearing surfaces (5,9,10,13) to transmit tension and compression axial forces, the connector comprising means (7) to apply, after engagement of the members (3,4) , a sufficient axial force on at least one of the members, to modify in the plastic range the axial length of at least a portion of said members (3,4) , so that after release of the axial force a preload subsists on the load-bearing surfaces (5,9,10,13) .
L'invention concerne un raccord tubulaire préchargé destiné à raccorder de manière étanche deux joints de tuyaux possédant un axe commun. Ledit raccord comporte au moins une paire d'éléments à filetage femelle et mâle possédant des surfaces porteuses conçues pour transmettre les forces de tension et de compression axiale. Il comprend également un moyen conçu pour appliquer, après la mise en prise des éléments, une force axiale suffisante sur au moins un des éléments, pour modifier dans le domaine plastique la longueur axiale d'au moins une partie des éléments, de sorte qu'après la suppression de la force axiale une précharge subsiste sur les surfaces porteuses.
Na
Nobileau Philippe
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