Resilient pipe gasket

Details Resilient pipe gasket Resilient pipe gasket

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 17/035 (2006.01)

Patent

CA 2191537

A resilient gasket is disclosed for providing a seal between corrugated pipes having a plurality of concentric ribs on their outer surface, such as drain and sewer pipes to be buried in soil. The gasket comprises a base which is received around a first pipe over top of a rib adjacent an end of the first pipe, with an inner surface adapted to mate with a radially outer surface of the rib, and with legs adapted to extend along forward and rearwardly-sloped faces of the rib. The outer surface of the base is provided with sealing means to engage the inner surface of the bell adjacent the end of a second pipe. The gasket also has a flap extending outwardly and forwardly from the forwardly extending leg. The flap and the forward leg form a V-shaped member. The flap engages the inner surface of the bell when the first pipe is inserted into the second pipe, and the gasket is rotated rearwardly relative to the rib. When the flap engages the inner surface of the bell, it prevents further rearward displacement of the gasket relative to the rib, thus preventing displacement of the gasket from the rib. The gasket also helps prevent gasket blowout during periods of unusually heavy water flow through the pipes.

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