发明名称 Hollow structural member
摘要 A structural member such as a wind turbine tower comprising a plurality of elongated hollow pole sections secured together in an end-to-end relationship with each of the hollow pole sections comprising a plurality of longitudinally extending peripheral sections joined together. Each of the peripheral sections is bent along at least one longitudinally extending break line to define a plurality of angled wall sections extending between longitudinally inwardly extending edge portions. The edge portions of the peripheral sections are bolted together to form a hollow pole section.
申请公布号 US7464512(B1) 申请公布日期 2008.12.16
申请号 US20040797778 申请日期 2004.03.10
申请人 PERINA MARK J 发明人 PERINA MARK J.
分类号 E04H12/00 主分类号 E04H12/00
代理机构 代理人
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