| 发明名称 |
Block boot for railway track systems |
| 摘要 |
The invention pertains to a boot for a railway block or tie. The boot is provided with fins that extend from an internal wall of the boot. The fins serve to space the internal wall from the railway block or tie during pouring and curing of concrete or grout around the boot. |
| 申请公布号 |
US6364214(B1) |
申请公布日期 |
2002.04.02 |
| 申请号 |
US20000609311 |
申请日期 |
2000.06.30 |
| 申请人 |
SONNEVILLE INTERNATIONAL CORPORATION |
发明人 |
SONNEVILLE BERNARD;BRAY, JR. ANDERSON THOMAS |
| 分类号 |
E01B1/00;E01B3/40;(IPC1-7):E01B1/00 |
主分类号 |
E01B1/00 |
| 代理机构 |
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代理人 |
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