| 发明名称 |
One piece center sill for a railroad car |
| 摘要 |
A one-piece center sill for a railroad freight 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.
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| 申请公布号 |
US6769366(B1) |
申请公布日期 |
2004.08.03 |
| 申请号 |
US19960712369 |
申请日期 |
1996.09.11 |
| 申请人 |
JAC PATENT COMPANY |
发明人 |
LYDIC TODD L.;BIANCHI TAMO;DECKER JAMES A. |
| 分类号 |
B61F1/02;(IPC1-7):B61D17/00 |
主分类号 |
B61F1/02 |
| 代理机构 |
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