Pipe section including a gasketed spigot end and method of makin

Details Pipe section including a gasketed spigot end and method of makin Pipe section including a gasketed spigot end and method of makin

1981-07-06

1983-08-16

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277203, 277207A, 277208, 285288, 285291, 285293, 285295, 285DIG16, F16J 1510, F16L 2102

Patent

active

043987265

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.

REFERENCES:
patent: 843892 (1907-02-01), Haller et al.
patent: 1057267 (1913-03-01), Phelan
patent: 2138946 (1938-12-01), Trickey
patent: 3904213 (1975-09-01), Swanson et al.
patent: 3937641 (1976-02-01), Kushner et al.

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