Radial waveguide for double cone transducers
US8469140B1 · kind B1 · utility
4Cited by
19References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jan 9, 2012 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jan 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A radial waveguide assembly comprises a transducer section and a waveguide section. The transducer section includes first and second cone loudspeakers arranged coaxially and in an opposed relationship. A compression plug having two input surfaces is mounted between diaphragms of the cone loudspeakers. Channels from the first and second cone loudspeakers feed common sound chambers located in a belt around the circular perimeter where they connect to external ports. A radial; folded waveguide has a circular throat which connects to the external ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.