Short radius culvert sections

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

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52 801, 138173, 138177, 405124, F16L 900

Patent

active

053759435

ABSTRACT:
Soil/metal supporting structures commonly include panel sections having a short radius of curvature in the range of 750 mm to 2,500 mm. In such soil metal supporting structures the panels are of heavy gauge in the range of 2 mm to 10 mm thickness. Usually, expensive tooling and forming techniques are required to cold form the heavy gauge material into a curved shaped having such short radius. Such expensive techniques have been eliminated by this invention by virtue of the improvements comprising:

REFERENCES:
patent: 1203656 (1916-11-01), Shannon
patent: 3638434 (1972-02-01), Delacre
patent: 4141666 (1979-02-01), DeGraff
patent: 4700514 (1987-10-01), Reineman
patent: 4958476 (1990-09-01), Kotter
patent: 5065554 (1991-11-01), Neya et al.

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