发明名称 |
A RAILWAY TIE OF NON-HOMOGENEOUS CROSS SECTION USEFUL IN ENVIRONMENTS DELETERIOUS TO TIMBER |
摘要 |
<p>Disclosed herein is a railroad tie comprising a core comprising wood or a wood product, and a first sleeve encapsulating the core, wherein the first sleeve comprises at least one of the group consisting of plastic, plastic-composite, or non-plastic polymers. A second sleeve may additionally encapsulate the first. In a preferred embodiment, the first sleeve is comprised primarily of poly ethylene terephthalate, and the second sleeve is comprised primarily of high density poly ethylene.</p> |
申请公布号 |
WO2008134336(A1) |
申请公布日期 |
2008.11.06 |
申请号 |
WO2008US61221 |
申请日期 |
2008.04.23 |
申请人 |
SUPERIOR RAIL SUPPORT, INC.;POWERS, SCOTT;JAFFE, JONATHAN |
发明人 |
POWERS, SCOTT;JAFFE, JONATHAN |
分类号 |
E01B3/46 |
主分类号 |
E01B3/46 |
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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