Road structure – process – or apparatus – Traffic director – Attenuated lane marker type
Patent
1988-06-30
1989-10-24
Massie, IV, Jerome W.
Road structure, process, or apparatus
Traffic director
Attenuated lane marker type
404 14, 350102, E01F 906
Patent
active
048757985
ABSTRACT:
A raised retroreflective pavement marker that provides both improved retroreflectivity and longer life has a rigid opaque, synthetic resin body having at its front face septa to which a plastic cube-corner reflector has been bonded to provide a plurality of hermetically sealed cells beneath the reflector. This pavement marker differs from those on the market in that the thickness of its reflector is less than 2 mm, and it has preferably at least 500 cube-corner elements per cm.sup.2.
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Kirn Walter N.
Little Douglas B.
Massie IV Jerome W.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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