Dual position hearing protection device
US7182087B1 · kind B1 · utility
11Cited by
6References
14Claims
0Family size
Inventor
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Jun 4, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is a dual position hearing protection device. In one position, the device provides substantial sound attenuation and hearing protection. In the second position, an opening in the device permits sounds to enter the ear of the user relatively unobstructed. In the preferred embodiment of this invention the position of the device is changed simply by compressing the exposed end of the earplug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.