Loudspeaker with improved voice coil support
US4165448A · kind A · utility
0Cited by
0References
4Claims
0Family size
Inventor
Key dates
| Filing date | Mar 31, 1978 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Mar 31, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A loudspeaker comprising a voice coil bobbin with a voice coil wound around its periphery and a line spanned so as to surround the voice coil bobbin, which includes hanging zones for passing by the voice coil bobbin and connecting portions for linking the hanging zones. The voice coil bobbin is engaged with the spanned line in such a manner that the voice coil is positioned in a gap between a central pole piece and a yoke. The voice coil bobbin is preferably put on a reinforced ring which is engaged with the line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.