Sound-damping profiled member
US7344772B2 · kind B2 · utility
12Cited by
1References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2003 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Sep 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A strip to be inserted between two elements to cause acoustic attenuation of noise propagating through at least one of the two elements. The strip is made of at least one plastic-based damping material, the strip having an equivalent real stiffness per unit length K′eq equal to at least 25 MPa and an equivalent loss factor tan δeq equal to at least 0.25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.