Hearing protection and communication assembly
US7133532B2 · kind B2 · utility
22Cited by
29References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Apr 5, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C11/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The speaker head is inserted into the protective ear insert and into one of the wearer's ears so that the audio signal is audible to the wearer in a loud environment where exterior noise is muffled by the protective ear insert and the speaker head is shielded from contact with the wearer. The protective insert is removably and moveably secured to the frame and variably positionable in accordance with the location of the wearer's ears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.