Lightweight acoustical system
USRE39010E1 · kind E1 · reissue
11Cited by
20References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Jun 13, 2022 |
Classification
- Technology area (CPC —)General
Abstract
An improved acoustical system for inhibiting noise in a motor vehicle. The system comprises an impermeable layer and an underlayment adjacent to the impermeable layer. The underlayment includes a first fibrous layer and a second fibrous layer. The underlayment has an airflow resistance between about 2000 and about 5000 mks Rayls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.