发明授权
- 专利标题： System for opening and closing a gate
- 专利标题（中）： 打开和关闭门的系统
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申请号： US386284申请日： 1995-02-09
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公开(公告)号： US5680729A公开(公告)日： 1997-10-28
- 发明人: Rodger T. Heffington
- 申请人： Rodger T. Heffington
- 申请人地址： TX Houston
- 专利权人： The Pickwick Corporation
- 当前专利权人： The Pickwick Corporation
- 当前专利权人地址： TX Houston
- 主分类号： E05F15/06
- IPC分类号： E05F15/06 ; E05F15/14 ; E05F11/34
摘要：
A system for opening and closing a gate or door which includes a sprocket and a perforated rigid strip of material. The perforated rigid strip of material is mounted to the gate or door. The sprocket is positioned so that the teeth of the sprocket will engage the perforations in the rigid strip. Therefore, when the sprocket is rotated the rigid strip will be moved by the sprocket thus causing the gate or door to open or close.
公开/授权文献
- US5015374A Closure cap for dialyzers 公开/授权日：1991-05-14
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