Coating for improving loudspeaker sound quality
US11109150B2 · kind B2 · utility
1Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Nov 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Aspects are disclosed of an acoustically active coating. The coating is a highly porous coating having a thickness and including between 2% and 30% by mass of a binder and between 70% and 98% by mass of a zeolite. The coating comprises an irregular matrix formed by a plurality of convex shapes connected by concave connectors and has a distribution of pore sizes. Other embodiments are disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.