Sound insulation constructions and methods of using the same
US9922634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2007 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Dec 25, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R13/0884
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Sound insulation constructions, multilayer constructions for acoustically insulating a source of sound from a receiver that include one or more sound insulation constructions, structures comprising one or more sound insulation constructions and/or multilayer constructions, and a method for acoustically insulating a source of sound from a receiver. In some embodiments, the sound insulation construction includes a first layer and a second layer. The first layer can include a bonded fiber nonwoven web exhibiting a work of compression of at least about 0.7 kJ/m3 and an airflow resistance of no greater than 10,000 Rayls/m. The second layer can exhibit an airflow resistance of greater than 10,000 Rayls/m. In some embodiments, the method includes coupling the first layer to a surface of a vehicle to attenuate sound in at least a portion of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.