Patent ID: 6264860
Filing Date: 2001-07-24
Classification: E01F

Abstract:
A method for making a housingless pavement marker comprising the steps: forming a reflective member having an outside planar surface bounded by periphery walls, said outside surface integrally divided by raised ridges, and an inside surface with plurality of diamond, hexagonal or rectangular shaped cells, each of said cells having a multiple of cube corner reflective elements, said cells isolated from each other by partition walls, each wall having a holding pin protruding through a corresponding shaped hole within a sonically welded backing sheet, said backing sheet sealing the entire back of the reflective cells forming an air gap between apices of the cube corner reflective elements within a cell and said backing sheet and casting a housingless pavement marker body made of a curable resinous material around the reflective member to form the housingless pavement marker.