Molded pleated gasket and device for installing same on pipe

Details Molded pleated gasket and device for installing same on pipe Molded pleated gasket and device for installing same on pipe

1976-12-27

1978-08-01

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 11, 277186, 277207A, 29235, 285 27, 285230, F16J 1510, B23P 1900

Patent

active

041039017

ABSTRACT:
A gasket for resiliently supporting a sewer pipe in a manhole opening, while sealing the opening against fluid flow, which gasket is a molded annulus of elastomeric material having a peripheral flange of substantial width and thickness connected by a radially extending web to an inner concentric rib of greater width than said web, and adapted to be embedded in concrete to its radially inward face, said rib having an integral circular skirt extending inwardly therefrom in a non-radial direction, and united at its rim with a second circular skirt oriented thereto at a reverse angle, said second skirt merging throughout its periphery into an O-ring of slightly smaller diameter than the diameter of the sewer pipe it is adapted to surround.

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patent: 3924861 (1975-12-01), Szepesvary

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