发明名称 Utility cover system
摘要 A utility cover system and method of covering and sealing an access cover for a utility entrance within a road surface. The utility cover system includes an outer frame having an opening defined by an inner edge, and a wedge cover of resilient material having an outer mating edge that fits within the opening of the outer frame. The wedge cover is removably positionable to cover the access opening by passing through the opening defined in the outer frame.
申请公布号 US7354220(B1) 申请公布日期 2008.04.08
申请号 US20050283126 申请日期 2005.11.18
申请人 CORR ROBERT F 发明人 CORR ROBERT F.
分类号 E02D29/14 主分类号 E02D29/14
代理机构 代理人
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