Importance

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Abstract

A sealing system for pipes, which is particularly applicable for corrugated pipes of the type including a corrugated pipe section having spigot end and a bell end including an annular bell ring. A gasket is attached to the open end of the bell ring at the bell end of the pipe, the gasket including an external portion and an internal portion. The external portion of the gasket is attached to the bell ring with a clamping band, for example, and the internal portion of the gasket is disposed inside of the bell ring and includes one or more sealing projections which project internally of the bell ring. Upon insertion of an end of a first corrugated pipe into the bell ring of a second corrugated pipe which includes the gasket, the sealing projections of the gasket engage one or more of the corrugations of the first pipe, and deformingly compress between the corrugations of the first pipe and the bell ring of the second pipe to provide a watertight seal.

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First Claim