Pipe section including a gasketed spigot end and method of making the same
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United States of America Patent
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Aug 16, 1983
Grant Date -
N/A
app pub date -
Jul 6, 1981
filing date -
Jul 6, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Certain pipe sections require an annular sealing gasket to be permanently positioned on the spigot portion. This is especially desirable with pipe sections formed with helically preceding reinforcing ribs. Disclosed is pipe section including a spigot end 2 having an annular groove 4 positioned adjacent the end surface thereof. Within groove 4 is placed fluid, settable bedding material 14 which has positioned therein and impregnated thereby a reinforcing material 15, preferably consisting of a ribbon of fiberglass material. Annular sealing gasket 3 is positioned in this groove 4 and onto the settable material 14 which is caused to intimately contact both the surface of the groove 4 and the sealing gasket 3. The thus sealed, bonded and reinforced spigot end retains the structural integrity and resistance to crushing loads and impact strength as is inherent in the rib reinforced pipe section.
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