Metal working – Method of mechanical manufacture – Structural member making
Patent
1997-10-17
2000-09-19
Cuda, I
Metal working
Method of mechanical manufacture
Structural member making
105416, 72181, B21D 5388
Patent
active
061193453
ABSTRACT:
A center sill for a railroad car formed by cold rolling a flat sheet of steel into a rectangular configuration. One of the embodiments includes strengthening flanges and another includes ribs. The center sill may be formed of a single cold formed section or a pair of cold formed sections joined by a single longitudinal weld seam.
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Bianchi Tamo
Lydic Todd L.
Cuda I
Johnstown America Corporation
Nguyen Trinh
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