发明名称 Methods of securing an installed concrete roof
摘要 A method of attaching an installed concrete roof is disclosed. The installed concrete roof consists of rectangular panels positioned along a grid. The concrete panels are supported by metal beams. Smaller metal panels, having a hole in each corner, are positioned over the joints formed by the corners of the rectangular panels. A hole is drilled through the concrete panels and into the supporting beams. A self-tapping screw is positioned through the hole and fixedly attaches the concrete panels to the supporting beams.
申请公布号 US7543421(B1) 申请公布日期 2009.06.09
申请号 US20060524592 申请日期 2006.09.21
申请人 KELLY MATTHEW M;HAMBLY PETER H 发明人 KELLY MATTHEW M.;HAMBLY PETER H.
分类号 E04B1/00;E04B1/38;E04B1/98;E04C2/38;E04G23/00;E04H9/02 主分类号 E04B1/00
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