Acoustically insulated apparatus
US5965851A · kind A · utility
51Cited by
28References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Jan 28, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2395/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An acoustically insulated apparatus is disclosed which includes a machine and an acoustical insulation system for the machine, wherein the machine generates noise having a peak sound frequency. The insulation system includes a two-part stratum having a porous sound absorbing media layer, and a sound reflecting barrier layer located between the sound absorbing layer and the machine, wherein the two-part stratum exhibits maximum sound absorption at the peak sound frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.