Three-wall corrugated pipe couplings and methods

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 21/035 (2006.01) F16L 25/00 (2006.01)

Patent

CA 2743807

A coupling (10) for three-wall, corrugated pipe, the pipe including a corrugated wall (22) having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section (16) having disposed at one end a bell portion (12), the bell portion having a bell portion of corrugated wall and an outer wall (24); a second pipe section (18) having disposed at one end a spigot portion (14), the spigot portion having a spigot portion of corrugated wall between an inner wall (20) and an outer wall; and a gasket (34) disposed in a groove extending around a circumference of the spigot portion and engaged between the bell portion of corrugated wall and the spigot portion of corrugated wall. A three- wall, corrugated pipe section, and method for assembling a plurality of three-wall, corrugated pipe sections, are also disclosed.

L'invention porte sur un manchon (10) pour un tuyau en tôle ondulée à triple paroi, le tuyau comprenant une paroi ondulée (22) ayant une pluralité d'ondulations principales. Le manchon comprend une première section de tuyau (16) ayant, disposée à une extrémité, une partie tulipe (12), la partie tulipe ayant une partie tulipe de paroi ondulée et une paroi externe (24) ; une seconde section de tuyau (18) ayant, disposée à une extrémité, une partie bout uni (14), la partie bout uni ayant une partie bout uni de paroi ondulée entre une paroi interne (20) et une paroi externe, et un joint d'étanchéité (34) disposé dans une rainure s'étendant autour d'une circonférence de la partie bout uni et venant en prise entre la partie tulipe de paroi ondulée et la partie bout uni de paroi ondulée. L'invention porte également sur une section de tuyau en tôle ondulée à triple paroi et sur un procédé pour l'assemblaged'une pluralité de sections de tuyau en tôle ondulée à triple paroi.

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