Push together tubular connection system

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

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F16L 25/00 (2006.01)

Patent

CA 2664865

A push-together pipe assembly is disclosed for joining two pipe ends. One pipe end has a specially contoured exterior surface. The other pipe end has a mating specially contoured interior surface. Each of the contoured surfaces is made up of a series of alternating helical spline wedges. The wedges are oppositely tapered from an inner extent to an outer extent thereof, whereby the helical spline wedges form an alternating series of lands and grooves as viewed from the respective mouth openings. The two opposing pipe ends mate and engage as one pipe end is pushed toward the other during assembly, causing a slight rotation of one pipe relative to the other.

La présente invention concerne un ensemble de tuyaux à raccord par pression permettant de raccorder deux extrémités de tuyaux. Une extrémité de tuyau comporte une surface extérieure spécialement profilée. L'autre extrémité de tuyau comporte une surface intérieure spécialement profilée correspondante. Chacune des surfaces profilées se compose d'une alternance de coins cannelés hélicoïdaux. Les coins se rétrécissent en sens contraire de leur extrémité intérieure à leur extrémité extérieure de façon que les coins cannelés hélicoïdaux forment une alternance de cloisons et de rainures lorsqu'on les regarde depuis les extrémités ouvertes correspondantes. Les deux extrémités de tuyaux opposées correspondent et s'emboîtent lorsqu'une extrémité de tuyau est poussée contre l'autre pendant l'assemblage, ce qui provoque une légère rotation d'un tuyau par rapport à l'autre.

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