Earphone cushions
US8355522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2011 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cushion includes a first material and a second material and is formed into a first region and a second region. The first region defines an exterior surface shaped to fit the concha of a human ear. The second region defines an exterior surface shaped to fit the ear canal of a human ear. The first and second regions together define an interior surface shaped to couple the cushion to acoustic elements of an earphone. The first material occupies a first volume adjacent to the interior surface. The second material occupies a second volume between the first material and the first and second outer surfaces. The first and second materials are of different hardnesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.