发明授权
US07014755B2 Filtration and plug drain device for containing oil and chemical spills
有权
过滤和堵塞排水装置，用于包含油和化学品泄漏
- 专利标题： Filtration and plug drain device for containing oil and chemical spills
- 专利标题（中）： 过滤和堵塞排水装置，用于包含油和化学品泄漏
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申请号： US11069968申请日： 2005-03-03
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公开(公告)号： US07014755B2公开(公告)日： 2006-03-21
- 发明人: Iain Muir , Fiona Elizabeth Barrett
- 申请人： Iain Muir , Fiona Elizabeth Barrett
- 代理商 Robert H. Barrigar
- 主分类号： C02F1/28
- IPC分类号： C02F1/28 ; E03F5/16
摘要：
A filter/plug drain assembly for insertion into a drain so as to prevent the passage of selected contaminants through the drain is disclosed. The filter/plug assembly includes stacked layers of filter, filtering/plugging and plugging material. The filter/plug assembly has alternative internal flowpaths configured to provide different plugging speeds when exposed to ongoing low levels of selected contaminants.
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