Movable roadway barrier
US4632598A · kind A · utility
31Cited by
9References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jul 15, 1985 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Jul 15, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An elongated roadway barrier having an upright wall attached to a base support adapted to engage a roadway surface is provided with retractable wheels which are lowered simultaneously with the application of a lateral force to the barrier using a cable system attached to drive motors located proximate the side of the roadway or using a self-propelled drive mounted in the barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.