Vibration excited sound absorber
US6478110B1 · kind B1 · utility
28Cited by
28References
23Claims
0Family size
Inventors
Key dates
| Filing date | Mar 13, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Mar 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A vibration excited sound absorber for reducing the sound radiation from a vibrating surface. Each sound absorber has a radiating element which is connected to the vibrating surface by a coupling means. The vibrating surface is partially covered with one or more devices. The dynamic response of the sound absorber is tuned so that the volume velocity of the radiating element is substantially equal in amplitude but opposite in phase relative to the volume velocity of the surrounding exposed vibrating surface. The net volume velocity of the surface is thereby reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.