发明名称 METHOD OF INSTALLING DEPRESSIBLE PAVEMENT MARKER
摘要 A retractable, reflective pavement marker for delineating traffic lanes of roadways and a method of installing the same that provides improved protection from potentially damaging vehicle tires, snowplows, and environmental conditions. The marker incorporates a reflector assembly mounted to a piston that is depressible within a housing. A biasing means returns the reflector assembly to its normal position above the road surface. A compliant adhesive cooperates with an adhesive lock formed between the housing and the opening to ensure that the marker is reliably retained within the pavement. The adhesive and a chamfered opening prevent pavement spalling due to external forces. The housing includes a removable retainer through which the piston is reciprocally received. The retainer includes a plurality of coarsely pitched lead-in threads that cooperate with a threaded housing. Multiple lead-in threads provide sufficient thread engagement, while substantially decreasing the number of rotations to achieve full engagement.
申请公布号 CA2729666(A1) 申请公布日期 2010.01.07
申请号 CA20092729666 申请日期 2009.06.30
申请人 ROADVISION TECHNOLOGIES, INC. 发明人 PAULOS, DEAN H.
分类号 E01F9/04;E01F9/06;G09F19/22 主分类号 E01F9/04
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