Loudspeaker including a cone circumscribed by a stiffener
US7711138B2 · kind B2 · utility
4Cited by
5References
8Claims
0Family size
Inventor
Key dates
| Filing date | Feb 2, 2006 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Dec 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/207
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a loudspeaker. The loudspeaker includes a frame, a cone having an outer edge in a shape of a reverse angle flange, and a reinforcing ring bonded to a back side of the flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.