Hearing aid
US8345905B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2010 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Dec 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/602
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An arc-shaped waterproof wall is provided around a shaft to which a hearing aid main body case and a battery case are rotatably attached, and waterproof ribs are provided to the outer periphery of the installation face of the battery case and the hearing aid main body case, which improves the ability to prevent the penetration of moisture while also keep the cost low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.