Sound absorbing cell and sound absorbing structure having the same
US10978036B2 · kind B2 · utility
0Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | May 14, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/8485
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sound absorbing cell according to an exemplary embodiment of the present invention is formed of a plurality of plates that are stacked while interposing an air layer therebetween, wherein the plurality of plates include: a reflective plate that is disposed outermost from a space where sound is generated; and a microperforated plate that is stacked on the reflective plate and having a plurality of holes perforated therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.