Gasket suitable for use in sealing exterior of sewer pipe to ope

Details Gasket suitable for use in sealing exterior of sewer pipe to ope Gasket suitable for use in sealing exterior of sewer pipe to ope

1983-03-07

1985-04-02

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 343, 277207A, F16L 2102, F16J 1532

Patent

active

045083550

ABSTRACT:
A circular gasket for sealing the opening between the exterior of a sewer pipe and the interior periphery of an opening in a manhole, in which greater sealing pressure is provided by using a plurality of longitudinal openings extending entirely around the gasket through the head portion thereof which contacts the sewer pipe.

REFERENCES:
patent: 2259940 (1941-10-01), Nathan
patent: 2369911 (1945-02-01), Lind et al.
patent: 2607966 (1952-08-01), Beck
patent: 3647229 (1972-03-01), Grimes
patent: 4159829 (1979-07-01), Ditcher

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