Sealing strip for bridging an expansion joint

Details Sealing strip for bridging an expansion joint Sealing strip for bridging an expansion joint

1987-05-19

1988-01-05

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277207R, 404 64, F16J 1510, E01C 1110

Patent

active

047171626

ABSTRACT:
An elastomeric seal having substantially hollow body having a polygonal cross section formed by a bottom wall, a pair of opposed spaced side walls, a top wall and a plurality of internal supporting struts symmetrically arranged about the center of the polygonal cross section. The top wall is formed of a pair of arms extending in a V to each other, the apex of which lies along the center line between the side walls. The side walls are themselves bent inwardly intermediate their ends to extend perpendicular to the respective arms of the top walls. Compression of the parallel side walls, toward each other, causes the inwardly bent portions of the side walls to rotate outwardly resulting in a raising of the apex of the top wall so that the top wall assumes a flat configuration. Also assuming a flat configuration are flanges attached to extend outwardly from each of the side walls and, having as one result, the prevention of seepage of water between the sides of the seal and the sides of the groove in which it is placed.

REFERENCES:
patent: 3606826 (1971-09-01), Bowman et al.
patent: 3765784 (1973-10-01), Watson et al.
patent: 3881834 (1975-05-01), Bowman
patent: 4141189 (1979-02-01), Borjeson
patent: 4457522 (1984-07-01), Trieste et al.
patent: 4522413 (1985-06-01), Nicholas

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