发明名称 |
HOLOW STRUCTURAL MEMBERS, A RAIL SYSTEM AND METHODS OF MANUFACTURING |
摘要 |
<p>The invention is hollow structural members, a rail system based thereon and method of manufacturing such hollow structural members. Embodiments of the structural members may be hollow triangular prism-shaped with a cross-section that is triangular, isosceles, hexagonal or otherwise. Embodiments of rail systems based on hollow structural members are also disclosed. Embodiments of the rail systems disclosed herein may also include reaction assemblies for local dissipation of stresses due to thermal expansion of track materials.</p> |
申请公布号 |
WO2009114113(A2) |
申请公布日期 |
2009.09.17 |
申请号 |
WO2009US01482 |
申请日期 |
2009.03.06 |
申请人 |
HILLTRAC, INC.;HEPNER, ALAN;METIVIER, DAVIS |
发明人 |
HEPNER, ALAN;METIVIER, DAVIS |
分类号 |
B21D51/16;B21D5/00;B21D11/10;B21D28/26;B66B17/14 |
主分类号 |
B21D51/16 |
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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