Surface marker strip and methods for providing improved integrity and adhesion to roadways and the like
US5139590A · kind A · utility
22Cited by
16References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1023
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved roadway marker rubber-like strip in which the upper layer is deformed into protruberances such as wedges or ridges, preferably provided with a coating of exposed retro-reflective beads, that have been cross-link-vulcanized to provide the same with memory that permits shape restoration following depression by vehicle traffic, and a cold-flow un-vulcanized bottom layer adhered to the roadway and conforming without memory to the same under vehicle traffic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.