Guardrail terminal barrier
US11098456B2 · kind B2 · utility
0Cited by
19References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2016 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | May 21, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/0453
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A force-absorbing barrier 10 includes a plurality of concentric chambers 21, 23, 25 and 27 at least partially filled with fluid 42. The walls 22, 24, 26 and 28 defining the chambers are flexible. Fluid passages 30 in the interior walls 24, 26 and 28 between chambers allow fluid flow between the chambers. The fluid flow from chamber to chamber will absorb energy from the impact a motor vehicle, preventing the vehicle from impacting the terminal of a guardrail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.