Noise attenuation
US5018203A · kind A · utility
23Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3217
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus for attenuating noise, particularly in an aircraft cabin, comprising a diaphragm (10) one side of which is subjected to the noise, sensing means (16) for sensing the displacement of the diaphragm in response to the noise, and deflecting means (20) responsive to the sensing means for deflecting the diaphragm in order to cancel the displacement, to attenuate noise transmitted from one side of the diaphragm to the other side of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.