Acoustical panel having a honeycomb structure and method of making the same
US6983821B2 · kind B2 · utility
44Cited by
34References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Jan 5, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/8461
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An acoustically absorbent porous panel with a layer constructed from a substantially continuous open-celled porous material comprising a cured foamed cementitious material including a first face and a second face. The first face has a surface with a substantially planar profile and the second face has a substantially geometric pattern of depressions formed therein comprising approximately 50% to approximately 90% of the layer by volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.