Switchable hearing protection ear plug
US9060897B2 · kind B2 · utility
1Cited by
6References
8Claims
0Family size
Inventor
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Jan 2, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is a switchable hearing protection ear plug. In one position, the ear plug provides substantial sound attenuation and hearing protection. In the second position, an opening in the ear plug permits sounds to enter the ear of the user relatively unobstructed. A deformable barrier in an interior chamber of the ear plug controls the passage of sound through the ear plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.