Cerumen block for sound delivery system
US6000492A · kind A · utility
26Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Jun 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/654
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earpiece for a sound delivery system has a sound output port for delivering sound into the ear canal of the user. A cerumen block is provided to prevent cerumen or earwax from blocking the sound output port of the earpiece. The cerumen block is formed by a small flap of material which covers the sound output port and blocks cerumen from entering the sound output port in a closed position while allowing sound to pass around the flap and enter the ear canal in an open position. A resilient hinge returns the cerumen flap to the open position once the earpiece has been placed within the ear canal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.