Bridge seal for expansion grooves

Details Bridge seal for expansion grooves Bridge seal for expansion grooves

1983-03-24

1984-07-03

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277207R, 404 64, E01C 1110, F16J 1510

Patent

active

044575220

ABSTRACT:
A comparatively wide sealing strip extruded of elastomeric material that in practice is used for sealing expansion grooves in bridges or the like, having a conventional arrangement of external functional walls, and in which the internal support walls that are provided to prevent collapse in the external walls while the elastomeric construction material is curing, cooperate to form a centrally located hexagonally shaped wall arrangement that flattens out when the seal is subjected to external compressive forces, and in this way enables the seal to offer an optimum minimum resistance to change to a diminished size.

REFERENCES:
patent: 3653305 (1972-04-01), Trieste et al.
patent: 3682053 (1972-08-01), Kerschner
patent: 3881834 (1975-05-01), Bowman
patent: 3900677 (1975-08-01), Barber

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