Ear wax guard
US7013016B2 · kind B2 · utility
18Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 2004 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | May 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/654
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To prevent soiling of a hearing aid, the latter is provided with an exchangeable ear wax guard which, in the area of the sound outlet opening of the hearing aid, can be inserted into a sound tube. The ear wax guard is characterized in that, in order to improve its securing in the sound channel, it is provided with elevations at least in a subarea of its surface. On the surface of the ear wax guard, the density or size of the elevations preferably increases counter to the direction of insertion of the ear wax guard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.