Roadway energy absorbing impact attenuator
US6454488B1 · kind B1 · utility
11Cited by
17References
5Claims
0Family size
Inventors
Key dates
| Filing date | Feb 2, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Feb 2, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An energy absorbing system comprising a plurality of break-away post elements sequentially spaced to be sheared off by impact of a vehicle. Each post element individually absorbs and decelerates the impacting vehicle at a pre-determined rate that in multiple successive impacts slows the vehicle to a stop before the barrier or to an acceptable speed within the design requirements for impact with a barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.