发明名称 Flexible raised pavement marker.
摘要 Raised pavement marker useful in geographic areas where snow plows are used and comprising hollow base with an open bottom and dome top, characterized by: A. base cross section being closed curved shape like cylinder; B. dome having: 1) outer surface which approximates surface of rotation of a sine wave with highest point in middle of dome; 2) dome cross section is thickest near center and thinnest at periphery; 3) at least 2 ribs projecting from surface, to protect reflector which may be cube corner reflector affixed to dome; C. material of construction which is an elastomer having Tg no greater than -50 DEG C, preferably polyurethane compound containing a lubricating polymer, such as a silicone. <IMAGE>
申请公布号 EP0486168(B1) 申请公布日期 1995.03.08
申请号 EP19910309789 申请日期 1991.10.23
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 MURPHY, PATRICK E.,C/O MINNESOTA MIN.AND MANUF. CO
分类号 E01F9/06;E01F9/07;E01F9/08 主分类号 E01F9/06
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