Playback devices having waveguides with drainage features
US10499128B2 · kind B2 · utility
0Cited by
32References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A playback device comprises an acoustic waveguide having a bounding surface, the bounding surface delimiting an opening. A drainage channel extends from the opening and is arranged to direct liquid from inside the waveguide toward a drainage outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.