Hearing aid wax guard with integral bridge
US5278360A · kind A · utility
42Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Sep 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/17
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wax guard system, for use with an in-the-ear hearing aid, has a housing secured to the hearing aid shell and an insert which screws into the housing. The insert has a body having an internal passage therethrough, and a bridge extending across the exterior opening of the passage. The bridge is higher at its centre than at its ends and carries a thin domed disk which shields the opening and deters wax from entering the passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.