Electromagnetic transducer with specific internal geometry
US11026032B2 · kind B2 · utility
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19References
26Claims
0Family size
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Key dates
| Filing date | Jul 24, 2017 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Apr 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2209/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device, including an electromagnetic transducer including a bobbin having a space therein, a connection apparatus in fixed relationship to the bobbin configured to transfer vibrational energy directly or indirectly at least one of to or from the electromagnetic transducer, and a passage from the space to the connection apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.