Sound barrier for audible acoustic frequency management
US8727071B2 · kind B2 · utility
4Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2010 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Sep 2, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2605/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a porous medium other than a porous metal, the porous medium having a porosity of at least about 0.02, and wherein the other of the first and second media is a viscoelastic or elastic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.