Railcar wheel, apparatus and method of manufacture
AssigneeRail 1520 IP Ltd
InventorVaughn W. Makary
Life of this patent
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AssigneeRail 1520 IP Ltd
InventorVaughn W. Makary
Estimating the term…
A cast metal railroad car wheel includes a hub section, a tread section, and an uninterrupted annular web extending between and supporting the tread section on the hub section. The web includes a disk-shaped surface that is continuously concave and that does not include a reversely curved portion. A V-process casting process casts railroad wheels using a vacuum-process casting mold with opposing halves each partially filled with unbonded sand and sand-retaining-plastic film and a vacuum application port and that, when positioned together with the unbonded sand held to shape by vacuum and the film, define a cavity shaped to form a railroad car wheel. The V-process includes feeding molten metal into the cavity, cooling the molten metal, and releasing a vacuum to cause the sand to fall away from the railroad car wheel.
1-37. (canceled)
A process for casting multiple cast metal railroad car wheels simultaneously, comprising steps of:
A process for casting a railroad car wheel comprising steps of:
A cast metal railroad car wheel comprising:
Dependencies are inferred from the claim text.