Loudspeaker suspension
US7397927B2 · kind B2 · utility
17Cited by
19References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2004 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Jul 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/207
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A loudspeaker suspension structure has an inner circumferential border, and an outer circumferential border, and grooves each extending from the inner circumferential border to the outer circumferential border at an angle with respect to a normal to the inner circumferential border, a profile of a circumferential section of the suspension structure having continuous curvature. Each of the grooves varies from the inner border to the outer border, the variation corresponding to a variation of a principal contour of the suspension structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.