Sewer pipe coupling

Details Sewer pipe coupling Sewer pipe coupling

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 25/14 (2006.01) E03F 3/04 (2006.01) F16L 41/08 (2006.01)

Patent

CA 2360875

A pipe coupling for transverse connection of a drainpipe to a concrete sewer pipe of larger relative diameter. The coupling has a hollow, longitudinally extending cylindrical body with first and second ends and interior and exterior surfaces. The body has an external locating shoulder, on the exterior surface, integral with the body and extending outwardly therefrom. The external locating shoulder limits penetration of the coupling in an opening in a sidewall of the concrete pipe. The body also has an internal groove on the interior surface, located at a same longitudinal spacing as the external locating shoulder. The internal groove receives an internal sealing ring for creating a seal between the drainpipe and the body when the drainpipe is inserted. The body further has an external recess on the exterior surface, longitudinally spaced from the external locating shoulder, the external recess receiving an external sealing ring for creating a seal between the body and the concrete pipe when the coupling is inserted into the opening.

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