发明名称 |
Tie plate |
摘要 |
An electrically-insulated tie plate for electrically isolating parts of a railroad rail system from each other. The electrically-insulated tie plate includes a base plate having a recessed area for receiving a railroad rail and a layer of electrically-insulating material covering portions of the base plate.
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申请公布号 |
US7261244(B2) |
申请公布日期 |
2007.08.28 |
申请号 |
US20050269160 |
申请日期 |
2005.11.07 |
申请人 |
PORTEC RAIL PRODUCTS, INC. |
发明人 |
URMSON, JR. WILLIAM T.;MOSPAN JOHN W.;DOWNEY JOHN M. |
分类号 |
E01B3/00;E01B9/36;E01B9/40 |
主分类号 |
E01B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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