Quick release system for guardrail terminals
US5490661A · kind A · utility
21Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/143
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention is directed to a quick release coupling, a displacement sensor, and an electronic monitoring unit. The displacement sensor is mounted near the end of the guardrail for measuring the force of a vehicle impact. The electronic monitoring unit is connected to the sensor and measures the acceleration of the impact and provides an actuation signal when the acceleration exceeds a predetermined value. The quick release coupling forms a connection between two separated portions of the guard rail and includes an explosively actuated release mechanism actuated by the monitoring unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.