Manhole infiltration disk and seal assembly

Details Manhole infiltration disk and seal assembly Manhole infiltration disk and seal assembly

1981-09-10

1983-01-18

Ward, Jr, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277101, 277180, 404 25, F16J 1510, E02D 2914

Patent

active

043688934

ABSTRACT:
A manhole infiltration disk and seal assembly including a circular plate having flanges on the inner and outer peripheral edges and a strip of compressible seal material on the top and bottom surface, the disk being adapted to be placed between the top of a manhole and the bottom of a manhole cover assembly to form a seal and a seal assembly for sealing the spaces between spacer rings when placed on the manhole.

REFERENCES:
patent: 2937037 (1960-05-01), Woolsey
patent: 3621623 (1971-11-01), Downes
patent: 3930656 (1976-01-01), Jelinek
patent: 3973856 (1976-08-01), Jaglioti
patent: 4101236 (1978-07-01), Meyer
patent: 4203686 (1980-05-01), Bowman

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