发明申请
US20040177582A1 Corrugated polymeric zigzag sheet for greenhouse roof structures
失效
用于温室屋顶结构的瓦楞聚合物之字形板
- 专利标题： Corrugated polymeric zigzag sheet for greenhouse roof structures
- 专利标题（中）： 用于温室屋顶结构的瓦楞聚合物之字形板
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申请号： US10249009申请日： 2003-03-10
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公开(公告)号： US20040177582A1公开(公告)日： 2004-09-16
- 发明人: Frans Adriaansen
- 主分类号： A01G009/00
- IPC分类号： A01G009/00 ; E04D001/00
摘要：
A sheet structure includes a pair of corrugated sheets formed in a zigzag pattern, the pair comprising an upper sheet and a lower sheet. In an exemplary embodiment, each of the pair of corrugated sheets further includes a flat portion disposed at selected intervals between individual zigzags. The flat portions of the upper sheet are aligned with corresponding flat portions of the lower sheet so as to maintain the upper and lower sheets in a double wall configuration.
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