Balanced armature receiver with liquid-resistant pressure relief vent
US11706561B1 · kind B1 · utility
0Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A balanced armature receiver includes a gas permeable barrier located on a portion of the receiver defining a back volume to provide barometric relief. The barrier can be located in a wall portion or diaphragm of the receiver to vent the back volume to an exterior of the receiver directly, via a front volume, or via a nozzle. The gas permeable barrier is impermeable to liquid infiltration and can be configured to influence the low frequency response of the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.