Acoustic board
US5004070A · kind A · utility
13Cited by
2References
2Claims
0Family size
Inventor
Key dates
| Filing date | Aug 16, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Aug 16, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24273
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention relates to an acoustic board and in particular to one which includes a framework, a front panel formed with a plurality of openings and fitted on one side of the framework, a rear panel fitted on the other side of the framework thereby forming a space between the front panel and the rear panel, a plurality of sound collecting cylinders each fitted with an opening of the front panel and having an open end at the same side of the front panel, and a plurality of silencers formed with a plurality of perforations and embedded into the other end of the sound collecting cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.