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US 7,478,599 B1Granted
Railroad car having cold formed center sill
AssigneeJAC Patent Company
InventorsTodd L. Lydic, Tamo Bianchi, James A. Decker
Life of this patent
Estimating the term…
Abstract
A railroad car having a center sill 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 cold formed 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.
Claims13
A railcar comprising:
- a plurality of truck assemblies, each truck assembly having at least one wheel
- an underbody supported on said truck assemblies, said underbody including a cold formed center sill extending substantially the length of said railcar, wherein said center sill includes two cold formed sections and no more than one weld seam connecting said two cold formed sections;
- and
- a railcar body attached to said underbody.
1 more element
A railcar comprising:
- a plurality of truck assemblies, each truck assembly having at least one wheel
- an underbody supported on said truck assemblies, said underbody including a cold formed center sill extending substantially the length of said railcar, wherein said center sill includes a generally hollow rectangular configuration with an open bottom, and wherein said center sill has a substantially uniform thickness of between about ⅜ inch to about ⅝ inch;
- and
- a railcar body attached to said underbody.
1 more element
A railcar comprising:
- a plurality of truck assemblies, each truck assembly having at least one wheel
- an underbody supported on said truck assemblies, said underbody including a cold formed center sill extending substantially the length of said railcar, wherein said center sill includes a generally hollow rectangular configuration with an open bottom, and wherein said center sill weighs less than 80 pounds per foot;
- and
- a railcar body attached to said underbody.
1 more element
A gondola railcar comprising:
- a pair of spaced truck assemblies, each truck assembly having four wheels;
- an underbody supported on said truck assemblies, said underframe including a cold formed center sill, said center sill comprising wherein said center sill is formed of a single cold formed section without weld seams, wherein said center sill includes a generally hollow rectangular configuration with an open bottom wherein said center sill has a substantially uniform thickness of between about ⅜ inch to about ⅝ inch;
- and
- at least one tub extending below said center sill between said pair of truck assemblies.
1 more element
A gondola railcar comprising:
- a pair of spaced truck assemblies, each truck assembly having four wheels;
- and
- an underbody supported on said truck assemblies, said underframe including a cold formed center sill, said center sill comprising no more than two cold formed sections, and no more than one weld seam connecting said cold formed sections, and wherein said center sill has at least four work hardened corners.
A gondola railcar comprising:
- a pair of spaced truck assemblies, each truck assembly having four wheels;
- and
- an underbody supported on said truck assemblies, said underframe including a cold formed center sill, and wherein said center sill includes two cold formed sections and no more than one weld seam connecting said two cold formed sections.
Dependencies are inferred from the claim text.