Joiner for pipe ends

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

Patent

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Details

F16L 21/035 (2006.01) F16L 21/02 (2006.01) F16L 21/08 (2006.01) F16L 37/08 (2006.01) F16L 37/084 (2006.01)

Patent

CA 2408572

A compression fitting or joiner for joining pipe ends having a plurality of tiltable annuli (17, 18) removably receivable over the pipe ends (6,8) and a fluid sealing housing (11). The fluid sealing housing (11) encloses the annuli (17,18). The annuli (17,18) are restrained from longitudinal movement on one side by means of a tab (5) inserted in an aperture (7) located in the housing (11). When a pull-out force is applied to the pipe end (6 or 8), the housing (11) retrains each annulus (17,18) on one side, causing each annulus to tilt from a position substantially perpendicular to the housing. This tilt reduces the effective lateral cross-sectional area inside each annulus (17,18) resulting in the application of a compressive force to the associated pipe end (6) thereby holding the pipe end (6) within the housing. To subsequently remove the pipe end (6) from the housing (11) a force is applied to remove the tilt from the annuli (17, 18).

L'invention concerne un raccord ou dispositif de raccordement à compression destiné au raccordement d'extrémités de tuyaux. Ledit dispositif de raccordement comprend plusieurs anneaux inclinables (17, 18) dans lesquels les extrémités (6,8) de tuyaux peuvent venir se loger de façon amovible et un logement (11) d'étanchéification fluidique. Ledit logement (11) d'étanchéification fluidique recouvre lesdits anneaux (17,18). On empêche tout mouvement latéral de ces anneaux (17,18) sur un côté au moyen d'une patte (5) que l'on insère dans une ouverture (7) ménagée dans le logement (11). Lorsqu'on applique une force d'arrachement au niveau de l'extrémité (6 ou 8) des tuyaux, le logement (11) retient chaque anneau (17,18) d'un côté, ce qui provoque l'inclinaison de chaque anneau par rapport à une position sensiblement perpendiculaire au logement. Cette inclinaison réduit la section latérale effective de chaque anneau (17,18), ce qui provoque l'application d'une force de compression sur l'extrémité (6) de tuyau associée, et donc le maintien de l'extrémité (6) du tuyau dans le logement. Pour extraire ensuite l'extrémité (6) du tuyau du logement (11), on applique une force destinée à annuler l'inclinaison des anneaux (17, 18).

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