Corrugated pipe with outer layer

Details Corrugated pipe with outer layer Corrugated pipe with outer layer

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 57/00 (2006.01)

Patent

CA 2601301

A pipe (300) having an axially extending bore is defined by a pipe wall including a corrugated outer wall (320) having axially adjac annular outwardly-extending crests separated by valleys (340). The pipe wall also includes a non-linear outer layer (350) having adjacent concave portions (360) and convex portions (370). The concave portions are aligned with the corrugation crests of the out wall so that the convex portion of the outer layer extends outwardly between at least two corrugation crests to provide improved resistance to deformation.

L'invention concerne un tuyau comprenant un alésage s'étendant de manière axiale, défini par une paroi formée d'une paroi extérieure ondulée présentant des sommets annulaires adjacents de manière axiale s'étendant vers l'extérieur et séparés par des dépressions. La paroi du tuyau comprend également une couche extérieure non linéaire présentant des parties concaves et des parties convexes. Les parties concaves sont alignées avec les sommets ondulés de la paroi extérieure de manière que la partie convexe de la couche extérieure s'étende vers l'extérieur entre au moins deux sommets ondulés afin d'améliorer la résistance à la déformation.

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