Elastomeric torsion bushings for levered loudspeakers
US9357279B2 · kind B2 · utility
0Cited by
17References
19Claims
0Family size
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Key dates
| Filing date | Mar 7, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R11/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A loudspeaker includes an acoustic diaphragm, an oscillatory force source, a lever coupling the oscillatory force source to the acoustic diaphragm, and a pivot coupled to the lever such that the lever moves in an arcuate path about the pivot when the oscillatory force source applies a force to the lever. The pivot includes at least one torsion bushing. The at least one torsion bushing includes a first member, a second member coupled to the lever and movable relative to the first member, and an elastomeric member coupling the first member to the second member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.