Acoustic liner for attenuating noise
US4327816A · kind A · utility
16Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1980 |
| Grant date | May 4, 1982 |
| Priority date | — |
| Expiry date | Apr 28, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/172
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An acoustic liner for attenuating noise comprises a backing face and a perforated facing sheet arranged over and spaced from the backing face, the perforated facing sheet being on non-uniform porosity in the direction of noise propagation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.