Highway and airport sound barriers
US5426267A · kind A · utility
Inventors
Key dates
| Filing date | Sep 22, 1993 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Sep 22, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F8/0011
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An elongated outdoor acoustic barrier for erection along a roadway or the periphery of an airport, for reflecting and absorbing sounds emanating from the roadway or airport, includes a plurality of substantially vertical columns arrayed at spaced intervals along the barriers' length, each having a recessed groove extending along its exposed above-ground lateral surface facing an adjacent spaced column; and a plurality of elongated flat rectangular panels arranged in a vertical edgewise array at least one panel in height, having opposite panel ends each securely embraced in a respective recessed grooves of a pair of adjacent columns, at least one of said panels being formed of extruded pre-stressed hollow core concrete plank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.