Pavement marker
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 11, 1980
Issued Date -
N/A
app pub date -
Dec 18, 1978
filing date -
Dec 18, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed herein is a pavement marker for engagement with an underlying roadway for providing a marking visible from an oncoming vehicle on the roadway surface. The pavement marker comprises a lens member of light-transmitting synthetic resin including a front face having a light receiving and refracting portion adapted to be inclined at an angle of at least 15.degree. and a rear face having reflex reflective means for reflecting light transmitted through the light receiving and refracting portion back to the source. In one embodiment, the pavement marker has an abrasion-limiting glass sheet having a thickness no greater than about 15 mils fixedly disposed on the light receiving and refracting portion and preferably under compression throughout the expected temperature range to which the pavement marker is exposed in use. In another embodiment, abrasion-limiting members are raised above the light receiving and refracting portion.
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International Classification(s)
Cited Art Landscape
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