Acoustic enclosures
US7448467B2 · kind B2 · utility
15Cited by
9References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 26, 2002 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Dec 24, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2803
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic enclosure such as a loudspeaker (10) uses within the cabinet adsorbent material, and/or containment means (22) for the adsorbent material, which is at least partially hydrophobic. Preferably, the material is activated carbon treated to provide it with hydrophobic properties. Preferably, the adsorbent material is treated with a silicon-containing compound. This improves the acoustic compliance of the acoustic enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.