Porous septum cap
US9127452B1 · kind B1 · utility
17Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2014 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A passive noise attenuation system is described herein. The passive noise attenuation system may comprise an acoustic structure. The acoustic structure may comprise a perforated top sheet and a core accessible via the perforated top sheet. The core may comprise a cell having a plurality of interior walls. The acoustic structure may comprise a back skin. The acoustic structure may comprise an inherently porous material disposed between the top sheet and the back skin, wherein the porous material forms a plane or multiple planes coupled to each interior wall to tangentially subdivide the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.