Loudspeaker enclosure
US4964482A · kind A · utility
27Cited by
6References
12Claims
0Family size
Inventor
Key dates
| Filing date | Feb 23, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Feb 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An enclosure for a loudspeaker is molded from a rigid acoustically inert material such as a polymer concrete. Preferably, the enclosure has an inner shell of a semi-rigid acoustically absorbent material providing damping for the enclosure. The enclosure may be conveniently manufactured by using a two-piece mold wherein the inner mold piece is sacrificed and forms the inner shell of the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.