发明授权
- 专利标题： Water control structure
- 专利标题（中）： 水控结构
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申请号： US11240874申请日： 2005-10-01
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公开(公告)号： US07422392B2公开(公告)日： 2008-09-09
- 发明人: Henry K. Obermeyer
- 申请人： Henry K. Obermeyer
- 主分类号： E02B7/00
- IPC分类号： E02B7/00
摘要：
The invention relates to improved pneumatically operated spillway gate systems and methods of constructing and operating the same. Methods of installation without the requirement for coffer dams are disclosed. A maintenance service dewatering box and service crane is also disclosed
公开/授权文献
- US20060078388A1 Water control structure 公开/授权日：2006-04-13