发明名称 |
Lightweight, composite structural railroad ties |
摘要 |
A lightweight, reinforced composite structural element is disclosed, which includes a hollow housing, interior reinforcement, a filling of polyurethane foam, and a substantially uniform outer coating of a high-solid protective coating. The reinforced composite structural element can be used as a railroad tie and for other construction uses. The structural element is formed with a housing having end caps or ends sealed by flaps that are connected with and bendable from the housing material to create a sealed container with openings for injection of the foam into cavities of the housing formed by the interior reinforcement.
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申请公布号 |
US7592059(B2) |
申请公布日期 |
2009.09.22 |
申请号 |
US20060504394 |
申请日期 |
2006.08.15 |
申请人 |
LANE KEVIN K;LANE LEGAL REPRESENTATIVE DUSTIN K;CAROTHERS PAUL A;LANE RYAN K;FAINO RYAN P |
发明人 |
LANE KEVIN K.;LANE, LEGAL REPRESENTATIVE DUSTIN K.;CAROTHERS PAUL A.;LANE RYAN K.;FAINO RYAN P. |
分类号 |
B32B3/00 |
主分类号 |
B32B3/00 |
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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