Back to results
US 2003/0143028 A1Published application
Cold roll forming a short radius curvature into deep corrugated metal plate
OwnerMichael W. Wilsoninventor
Life of this patent
Estimating the term…
Abstract
A deep corrugated structural metal plate having a cold roll formed, uniform uninterrupted short radius of curvature along at least a portion of the plate's length in the range of about 450 mm up to about 3100 mm.
Claims14
A deep corrugated structural metal plate having a cold roll formed uniform uninterrupted short radius of curvature along at least a portion of said plate's length in the range of about 450 mm up to about 3100 mm.
A load bearing structure in the form of a culvert, arch or box culvert having a short radius section of about 450 mm to 3100 mm,
- said structure being erected by interconnecting deep corrugation structural metal plates;
- each plate having a predetermined curvature along its length to match a corresponding section of said structure profile;
- each said plate for said short radius section having a cold roll formed uniform uninterrupted short radius curvature along said plate's length;
- each of said plates having prepunched holes for receiving fasteners to complete plate interconnection in erecting said structure, said prepunched holes being aligned with complementary prepunched holes in said interconnected plate to facilitate fastener insertion.
1 more element
Dependencies are inferred from the claim text.