Patents Assigned to Highway Ceramics, Inc.
  • Patent number: 5104256
    Abstract: A low profile pavement marker (30) for bonding to a pavement with an adhesive for marking traffic lanes and areas is described. The marker has a smooth upper reflective surface (36) which scatters overhead light in all horizontal directions for daytime visibility and a vertical retroreflective strip (42) for reflecting incident light to its source for nightime visibility. The marker (30) has a lip bonded to its base (34) to keep the pavement adhesive away from the retroreflective strip (42) which allows the strip to be located adjacent to the pavement. This, in turn, allows for the low profile and the optimal vertical placement of the retroreflective strip (42). A visor (46) extends smoothly outward from the upper surface (36) and protects the retroreflective strip (42) from tire abrasion. A clear coating (44) protects the retroreflective strip (42) from moisture and ultraviolet radiation. Other embodiments are also provided.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: April 14, 1992
    Assignee: Highway Ceramics, Inc.
    Inventor: Canan D'Avela