Gasket seal

Details Gasket seal Gasket seal

1987-11-19

1989-05-30

Griffin, Donald A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

405153, 264 468, F16J 1534, E21D 1108, B29C 5110

Patent

active

048343951

ABSTRACT:
An arcuate concrete section (13) for forming a tunnel has a groove (12) around its edges for accommodating a rectangular frame sealing ring (11) of moulded rubber for sealing adjacent sections (13) together. The sealing ring (11) has a section (FIG. 3) with holes (20, 21, and 22) and grooves (23) for allowing distortion as the concrete sections are forced together edge to edge. At the corner of the sealing ring the section is moulded solid (FIG. 6), but with larger grooves (34) to allow for distortion.

REFERENCES:
patent: 3161436 (1964-12-01), Hood
patent: 3695044 (1972-10-01), Hoshino et al.
patent: 3879505 (1975-04-01), Boutillier et al.
patent: 4661391 (1987-04-01), Schroder et al.

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