发明名称 Device for cutting a receptacle in pavement to receive plowable reflectors
摘要 A device for cutting a receptacle in pavement to receive a reflector designed to reflect automobile lights, which reflector is contained in a housing so that it is protected from a snowplow mold board during normal plowing operations. Such reflectors are becoming standard in separating traffic lanes and are embedded in the pavement in epoxy. The device simultaneously cuts a receptacle of a shape such that the reflector and its protective cast iron housing may be readily inserted in the pavement. The device enables the receptacle to be cut at right angles to a tangent to the curved portion of the crown of the road, permits rapid exact positioning of the receptacle location and enables the receptacle to be formed in approximately five seconds.
申请公布号 US4463989(A) 申请公布日期 1984.08.07
申请号 US19810328288 申请日期 1981.12.07
申请人 KENNEDY, RALPH 发明人 KENNEDY, RALPH
分类号 B28D1/18;E01C23/09;(IPC1-7):E01C23/09 主分类号 B28D1/18
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