Sound barrier for audible acoustic frequency management
US8132643B2 · kind B2 · utility
5Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/165
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
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 viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, 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.