Improvements in tubular bodies and methods of forming same

Details Improvements in tubular bodies and methods of forming same Improvements in tubular bodies and methods of forming same

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 9/16 (2006.01) F16L 9/04 (2006.01) F16L 25/00 (2006.01)

Patent

CA 2571160

A tubular body (10) comprises an inner hollow core (12) and an outer casing (14) of one or more strips of self mechanically inter-engaging helically wound material having a higher yield stress than that of the core material. Also provided is a method of forming the tubular body (10) comprising the steps of winding the outer core (14) onto the inner (10) core (12) and an end connector (32) for use with said tubular body (10) when said body (10) is provided with helically extending detents (30a) on an outer surface thereof.

Un corps tubulaire (10) comprend un noyau interne creux (12) et un boîtier externe (14), constitué d'une ou de plusieurs bandes mécaniques s'engrenant mécaniquement entre elles ou enroulées de façon hélicoïdale, qui ont une résistance plus élevée que celle de la matière du noyau. L'invention concerne aussi un procédé pour former le corps tubulaire (10) comprenant l'enroulement du noyau externe (14) sur le corps interne (10), le noyau (12) et un connecteur d'extrémité (32) destiné à s'utiliser avec ledit corps tubulaire (10) lorsque ledit corps (10) est muni de détentes (30a) dépassant de façon hélicoïdale de sa surface externe.

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