Reflective pavement marker and method of apparatus for making same
US5061114A · kind A · utility
14Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Feb 5, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/553
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A reflective pavement marker of the type having a shell-like housing of synthetic resin or other moldable material with a reflective end wall of light transmitting material with a filler of epoxy or other potting material. The reflective end wall is formed with retro-directive reflective elements of cube corner type. The end wall is dished so that light rays reflect from the array of cube corner reflective elements and converge to enhance the candle power of the reflective light. Also disclosed is a method and apparatus for making the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.