Patent · US Active

Soundproofing assembly for an automobile, and associated wall element

US8695757B2 · kind B2 · utility

29Cited by

17References

17Claims

0Family size

Assignee

FAURECIA AUTOMOTIVE INDUSTRIE · FR

Inventors

Arnaud Duval · Bienne, CH
Lars Bischoff · Braunschweig, DE
Jean-François Rondeau · Neufchâteau, FR

Key dates

Filing date	Feb 19, 2010
Grant date	Apr 15, 2014
Priority date	—
Expiry date	Feb 19, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R13/0884
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The assembly comprises a base spring layer made with a base of a resilient porous material, and the base spring layer being intended to be placed opposite a surface of the automobile. It comprises a stiffening layer arranged above the base spring layer and having a surface density greater than 250 g/m2 and at least one resilient porous upper layer arranged on the stiffening layer. The stiffening layer is made with a base of a dense porous material having a resistance to air flow strictly greater than 2000 N·m−3·s. The assembly advantageously has an upper resistive layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.