Road structure – process – or apparatus – Traffic director – Attenuated lane marker type
Patent
1997-05-08
2000-05-09
Lisehora, James A.
Road structure, process, or apparatus
Traffic director
Attenuated lane marker type
404 13, 404 15, 404 94, 116 63R, E01C 2318, E01F 906
Patent
active
060594888
ABSTRACT:
A raised road marker has a flat bottom surface with an outer periphery. At least one cavity opens onto the bottom surface laterally inwardly of the periphery and extends upwardly into the marker body. A venting groove extends along the bottom surface from the cavity to the periphery to provide a vent for air trapped in the cavity when the marker is urged into a pool of adhesive to secure the marker to a roadway. The venting of air provides a stronger bond between the marker and adhesive. For markers having a rounded top surface, there is preferably an indexing projection on the top surface and a complementary recess on the bottom surface. This enables interlocking of a plurality of markers in a vertical stack to prevent tilting of the markers.
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Lisehora James A.
Pauly Joan H.
Winter Beaver, Inc.
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