发明名称 |
Double walled structural reinforcement |
摘要 |
A double walled reinforcement structure and method for making a double walled reinforcement structure having a plurality of longitudinally extending and nested structural members. Each structural member comprises a first cell having a first cross-section and a second cell having a second cross-section. The second cell is positioned within the first cell and the second cell contacts the first cell in a plurality of locations to provide mutual support of the cells in a manner increasing the tensile and compressive strength of the structure.
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申请公布号 |
US7939158(B2) |
申请公布日期 |
2011.05.10 |
申请号 |
US20070738798 |
申请日期 |
2007.04.23 |
申请人 |
AKRON RUBBER DEVELOPMENT LABORATORY, INC. |
发明人 |
KARMARKAR UDAY PRAKASH |
分类号 |
B32B3/12;E04C2/32;E04C2/54 |
主分类号 |
B32B3/12 |
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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