Process for producing tight joints for domestic connector...

E - Fixed Constructions – 03 – B

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E03B 1/04 (2006.01) F16L 41/04 (2006.01) F16L 55/179 (2006.01)

Patent

CA 2184601

Method of making leakproof sites of entry of domestic connection pipes and similar feed pipes in sewers. To form a pressure-proof connection of the respective pipe entering into the sewer with the sewer wall, at first the edge of the entry is widened by cutting out a recess extending along this edge, and subsequently the cavities present in the region of the site of entry externally of the sewer inner face are filled with a solidifying sealing mass, from the interior of the respective entry pipe. Thereupon solidified sealing mass present in the flow path of the entering pipe is removed so as to make this flow path passable, the cavities previously present around this flow path remaining filled with solidified sealing mass. Optionally, a cover layer is subsequently applied to the inner face of the entry.

L'invention concerne un procédé d'étanchéification d'embouchures de tuyauteries domestiques (6) et de tuyaux similaires d'alimentation de canaux des eaux d'égout (1), dans leurs zones de jonction. Afin de réaliser un raccordement étanche à la pression entre chacun des tuyaux concernés qui débouche dans le canal et la paroi dudit canal, le bord de l'embouchure (9) du tuyau est tout d'abord élargi par fraisage d'un évidement (15a) s'étendant le long de ce bord. Les cavités situées dans la zone du point de jonction, en dehors de la surface intérieure du canal sont alors remplies, depuis l'intérieur de chacun des tuyaux raccordés, d'une matière d'étanchéité (12) durcissant à la température ambiante. Cette matière durcissant à la température ambiante qui se trouve dans le trajet d'écoulement du tuyau à raccorder est ensuite enlevée, ce qui libère ledit trajet d'écoulement. Les cavités qui se situaient auparavant tout autour de ce trajet d'écoulement demeurent alors remplies de la matière d'étanchéité durcie. Une couche de recouvrement est éventuellement appliquée sur la surface intérieure de l'embouchure du tuyau concerné, dans sa zone de jonction.

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