发明名称 |
Elastomeric railway tie pad |
摘要 |
An elastomeric member is arranged beneath a railroad tie to adjust the modulus of track over a relatively stiff structure such as a bridge or tunnel. Methods or combinations that include an elastomeric member are employed to reduce the modulus of a track over a relatively stiff structure to a magnitude approximating the modulus of track over the terrain surrounding the structure.
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申请公布号 |
US7278588(B2) |
申请公布日期 |
2007.10.09 |
申请号 |
US20040984588 |
申请日期 |
2004.11.08 |
申请人 |
NORTHWEST RUBBER EXTRUDERS, INC. |
发明人 |
ENGLISH TOM;LUCAS, JR. JOE;PUTNAM DEAN |
分类号 |
E01B19/00 |
主分类号 |
E01B19/00 |
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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