Sound tube for an earpiece, sound tube arrangement, earpiece with such a sound tube or sound tube arrangement and hearing device with such an earpiece
US9749759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2013 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Nov 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention proposes a sound tube (3) for an earpiece (1), wherein a first section (4) of an inner surface of the sound tube (3) has a structured surface, in particular a textural pattern forming a relief comprising convexities (13) and/or concavities (11). Alternatively or additionally, the sound tube (3) features a radially extending, circumferential flange (8), annular lip (8′) or collar at an outer surface of the sound tube (3). The present invention is further directed to a sound tube arrangement comprising two of the proposed sound tubes integrally formed in one piece and to an earpiece (1) with such a sound tube (3) or such a sound tube arrangement as well as to a hearing device with such an earpiece (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.