Simplified low insertion force sealing device capable of self restraint and joint deflection

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United States of America Patent

PATENT NO 8511691
SERIAL NO

13475353

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Importance

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Abstract

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A conduit coupling system, sealing device, bell and method of use are disclosed herein. The system comprises at least two piping components, and a sealing device. A first component has a bell and a second component has a spigot, the spigot is adapted to mate with the bell. The bell comprises a first end and a second end, the first end coupled to the first component. The bell has a concave annular inner surface and a diameter of the annular inner surface adjacent to the first end of the bell is greater than a diameter of the annular inner surface adjacent to the second end of the bell. The sealing device comprises a locking segment comprising a convex outer surface and a K-type gasket coupled to a locking segment or a non-restraining anti-extrusion segment. The sealing device is adapted to fit between the bell and the spigot.

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Patent Owner(s)

Patent OwnerAddress
MUELLER INTERNATIONAL LLPATLANTA GA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holmes,, IV William W Hoover, US 13 133
Owen, William H Fultondale, US 44 828

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