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Document Number
US Patent 6050742
Issued Date
April 18, 2000
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Abstract
A raised pavement marker includes a rigid reflector assembly that supports two retroreflectors. The reflector assembly is resiliently mounted over a base by a resilient membrane, which is secured to the base at its outer edge. When a vehicle contacts the reflector housing, downward forces supplied by the vehicle to the reflector housing deform the membrane, which allows the reflector housing to move downwardly to pavement level. After the vehicle has passed, the resilience of the membrane restores the reflector assembly to its raised position. Methods for installing and removing the pavement marker are disclosed.
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Pavement marker - US Patent 6050742 Drawing
Drawing from US Patent 6050742
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Number of Claims:
9
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Published
April 18, 2000
Application Number
08/780,378
Filed
January 8, 1997
US Classification
404/10   404/11 404/12 404/14 404/73 404/94
Int'l Classification
E01F   9/07   (20060101)   E01F   9/04   (20060101)  
Attorney/Law Firm
Parent Case
This application claims the benefit of provisional U.S. patent application Serial No. 60/012,903, filed Mar. 6, 1996, which is hereby incorporated by reference in its entirety.
USPTO Field of Search
404/9   404/11   404/12   404/14   404/15   404/16   404/90   404/93   404/94   404/10   404/73   116/63P   116/63R  
Related Patents
6478506 - Roadway pavement marker - Owned by Energy Absorption Systems, Inc. (Chicago, IL)

A roadway pavement marker includes a base that supports a flexible membrane. The membrane supports an anchor plate, and the anchor plate in turn supports a reflector housing. The reflector housing is releasably secured to the anchor plate by one or more mechanical fasteners accessible from a side of the membrane opposite the base.

Claims
Description
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