Earmuff and headset with the same
US8718312B2 · kind B2 · utility
3Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Sep 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earmuff which is adapted to covering a driver includes a first case having a first through hole and a second case having a second through hole. The second case accommodated within the first case to form an inner chamber where the driver is disposed therein. Since air flows between the first case and the second case via the first through hole and the second through hole, a satisfactory ventilation effect can be achieved and thus feeling of being at ease can be furnished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.