Earpiece and method for forming an earpiece
US8437492B2 · kind B2 · utility
45Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2011 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earpiece is provided containing a thermal activator layer comprised of a first polymer, the thermal activator layer being separated from the tympanic membrane of the user's ear by an air gap, and an acoustical reflector layer, containing a second polymer and pigment particles, adjacent to the thermal activator layer. The earpiece may be produced by sequential introduction of various liquefied components in layers within the ear canal, with the components being cured to provide the thermal activator layer and the acoustical reflector layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.