Culvert joint

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control

Patent

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Details

52396, 285114, 285226, 404 68, 405136, E01F 500, F16L 2700

Patent

active

042215021

ABSTRACT:
The present invention relates to a flexible joint to be inserted between culvert sections. In a culvert joint which consists of anchor members attached to the opposing culvert sections, a flexible member extending between said anchor members and a large number of strengthening members arranged in parallel at the internal and external positions of said flexible member, said strengthening members being classified into one with projections and one with holes to regulate the distance between them; the projections of said member with projections fit into the holes of said member with holes to overlap each other, thereby regulating the distance between them to follow an expansion and contraction or an uneven subsidence of the culvert and therefore, bearing earth pressure sufficiently.

REFERENCES:
patent: 3112579 (1963-12-01), Needham et al.
patent: 3344720 (1967-10-01), Hallock
patent: 3390501 (1968-07-01), Driggens
patent: 3704034 (1972-11-01), Shire et al.
patent: 3725565 (1973-04-01), Schmidt
patent: 3729939 (1973-05-01), Shimizu
patent: 3750359 (1973-08-01), Balzer et al.
patent: 3974614 (1976-08-01), Strong
patent: 4027902 (1977-06-01), Tanikawa

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