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1. 发明授权

US07883290B1 Manhole security barrier 有权
标题翻译：人孔安全屏障
公开(公告)号：US07883290B1
公开(公告)日：2011-02-08
申请号：US12102399
申请日：2008-04-14
申请人： Brenda Ross , David Ross
发明人： Brenda Ross , David Ross
IPC分类号： E02D29/14 , E03F5/08
CPC分类号： E02D29/1427
摘要： A manhole barrier system configured to prevent unauthorized access or dumping or removal of materials into manholes is provided. The manhole barrier system includes a substantially hollow sub-ring configured to be secured to the inside wall of the manhole, preferably using a layer of adhesive, and to receive a pan configured to serve as a barrier therein. The pan may be secured to the sub-ring by way of circumferentially spaced locking assemblies. The locking assemblies are further configured to allow for a limited amount of play between the pan and the sub-ring such that water trapped in the manhole may be allowed to flow upwardly out of the manhole.
摘要翻译：提供了一种配置用于防止未经授权的访问或将材料倾倒或移走到人孔中的人孔屏障系统。井眼阻挡系统包括基本上中空的子环，其构造成固定到人孔的内壁，优选地使用一层粘合剂，并且接收构造成用作其中的屏障的平底锅。盘可以通过周向间隔开的锁定组件固定到子环上。锁定组件进一步构造成允许盘和子环之间的有限量的游隙使得被困在人孔中的水可能被向上流出人孔。

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