Method and assembly for cleaning and/or insertion of a draw...

Details Method and assembly for cleaning and/or insertion of a draw... Method and assembly for cleaning and/or insertion of a draw...

H - Electricity

02

G

H02G 1/08 (2006.01)

Patent

CA 2253507

An assembly (1) for air-assisted insertion of a draw line (6a) inside and along a conduit (2) from an entry end of said conduit to an exit end; the assembly comprising a source of pressurised air (8); an apparatus (4) for sealing an end (16) of said conduit (2) through or about said sealing apparatus (4), a through passage in or in said sealing apparatus which receives a draw line (6a) such that when said sealing apparatus (4) engages the entry end (16) of said conduit, the draw line is capable of entering the apparatus (4) inside the conduit, a shuttle (6, 23) connected to a leading end of the draw line (6a) responsive to delivery of air from said pressurise air source (8) and which urges the draw line (6a) along the conduit (2) until it exits the conduit (2) via said exit end.

L'invention porte sur un ensemble (1) pneumatique d'insertion d'un câble de traction (6a) dans et le long d'une conduite (2) depuis l'entrée de ladite conduite jusqu'à sa sortie. L'ensemble comprend: une source (8) d'air comprimé; un appareil (4) fermant l'une des extrémités (16) de ladite conduite (2) à travers ou autour dudit appareil; un passage traversant ledit appareil de fermeture et recevant un câble de traction (6a) de manière à ce que lorsque l'appareil de fermeture (4) est engagé dans l'entrée (16) de ladite conduite, le câble de traction puisse pénétrer dans l'appareil (4) à l'intérieur de la conduite; une navette (6, 23) reliée à la tête du câble de traction (6a) et réagissant à l'air fourni par ladite source d'air comprimé (8) et qui tire le câble de traction (6a) dans la conduite (2) jusqu'à ce qu'il en sorte par la sortie.

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