Acoustical transducer with a slotted piston suspension
US4433214A · kind A · utility
41Cited by
10References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1981 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Dec 24, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/207
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved electrodynamic acoustic transducer with a slotted piston suspension system which results in greater linear excursions by relieving stresses within the diaphragm during the movement and allows improved operations of transducer with greater magnet size and greater radiating areas of diaphragm suspension. Overall efficiency of transducer is thereby improved. An improved piston suspension can be utilized with electrodynamic acoustic transducers operating in the range of 200 to 20,000 cycles per second.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.