Pressure equalizing construction for nonporous acoustic membrane
US10911847B2 · kind B2 · utility
2Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R19/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pressure equalizing assembly with a nonporous membrane traversing across an acoustic pathway defined by an opening in a housing. A breathable layer connected to the nonporous membrane may be laterally arranged to the acoustic pathway. An acoustic cavity is defined by the breathable layer and nonporous membrane. The nonporous membrane has a side facing the opening in the housing to prevent fluid or moisture from penetrating into the acoustic cavity. The breathable layer further equalizes pressure in the acoustic cavity by providing a venting layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.