Road barrier
US4307973A · kind A · utility
29Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1980 |
| Grant date | Dec 29, 1981 |
| Priority date | — |
| Expiry date | Jan 22, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A road barrier for traffic lanes, raceways and the like comprises a sheet-metal shell which is internally galvanized and is filled with a synthetic-resin foam and which extends continuously along the lane in contact with the ground while being of a height equal at least to a substantial fraction of the average wheel height for four-wheel and two-wheel vehicles using the traffic lane. The structure is anchored to the ground by posts fitting into openings in the rail and in the ground and likewise formed of sheet metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.