Hybrid shell for hearing aid
US11277699B2 · kind B2 · utility
1Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is a described for constructing a hearing aid shell that comprises a combination of hard and soft materials. In one embodiment, 3D printing is combined with conventional mold/casting methods so that a first shell portion made of a hard material and a mold for a second shell portion are 3D printed. The mold is then filled with a soft material which is allowed to set to form the second shell portion, and the first and second shell portions are adhesively attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.