发明名称 BOUNDARY MARKER
摘要 BOUNDARY MARKER A boundary marker or delineator is disclosed comprising an elongate hollow cylindrical pole member normally held in an upright position with respect to a base member by means of a solid flexible support member. The cylindrical pole member is filled with a solidified foam and closed by opposed end caps held in place by a centrally-disposed rigid rod member threadedly connected to each. When utilized as a path delineator for moving vehicles, the boundary marker is capable of withstanding impact forces upon being struck and crushing forces upon being run over by vehicles of all types.
申请公布号 CA1036312(A) 申请公布日期 1978.08.15
申请号 CA19760247649 申请日期 1976.03.11
申请人 O'DONNELL, JOHN F. 发明人 O'DONNELL, JOHN F.
分类号 E01F9/627 主分类号 E01F9/627
代理机构 代理人
主权项
地址