Pipe joint sealing device

Details Pipe joint sealing device Pipe joint sealing device

1975-03-04

1976-08-10

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG2, 285189, 285231, F16J 1532, F16L 1900

Patent

active

039737837

ABSTRACT:
This invention relates to a pipe joint sealing device. The device includes an annular resilient body of rubber which is generally V-shaped in cross-section which defines inner and outer annular flanges or body portions. This annular body or rubber ring is fitted into the opening of a rigid concrete structure, such as a manhole, in fluid-type engagement therewith. This engagement is interlocking which prevents the accidental dislodgement of the rubber ring from the opening, and is achieved b casting the concrete into lockingengagement with the outer peripheral surface of the ring, this ring being provided with an annular anchor portion which in cross-section is of keystone shape.

REFERENCES:
patent: 2924472 (1960-02-01), Bush
patent: 3680874 (1972-08-01), Schwarz
patent: 3787061 (1974-01-01), Yoakum

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