Vehicle acoustic barrier
US7070848B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Oct 21, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24322
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An acoustic barrier that achieves excellent noise insulating properties, and is relatively thin and relatively light in weight includes a flexible thermoplastic barrier layer having a plurality of apertures defining a latticed structure which includes apertures for pass-through components and non-pass-through apertures. The non-pass-through apertures are located where noise levels are expected or known to be relatively low. Effective acoustic performance can be maintained by completely eliminating material from the relatively thick and dense barrier layer at the low noise levels areas, and providing only absorptive decoupler material and/or lightweight sheet material such as plastic films in those areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.