Sound absorbing device
US12305387B2 · kind B2 · utility
0Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2021 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Feb 14, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3214
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A sound absorbing device according to an exemplary embodiment of the present invention comprises a plurality of sound absorbing cells arranged adjacent to each other on a plane, and each of the plurality of sound absorbing cells includes: a chamber having a volume therein, and in which a plurality of micro holes is perforated on a front surface in which a sound wave is incident; and a neck part introduced and extended to a rear of the front surface and penetrated by a through hole for communicating the outside and the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.