Vehicle acoustic damping and decoupling system

Details Vehicle acoustic damping and decoupling system Vehicle acoustic damping and decoupling system

1997-04-22

1998-12-22

Loney, Donald

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular backing structure or composition

428178, 181288, 181290, 2961467, 296211, B32B 302, B60J 500

Patent

active

058516263

ABSTRACT:
A vehicle acoustic system is attachable over a vehicle interior sheet metal component. The system includes a bubble pack which has a first film layer and a second film layer secured to the first film layer, wherein the first and second film layers cooperate to form a plurality of pockets therebetween. The pockets include a gas disposed therein, such that the pockets are at least partially compressible. The bubble pack is adapted to be positioned in direct contact with the sheet metal component. The gas disposed in the pockets could be air or any other lightweight gas. A plurality of kinetic energy dissipating granules may be disposed within the pockets for enhanced noise isolation. Alternatively, damping liquids or gels may be disposed in the pockets. Various embodiments are described.

REFERENCES:
patent: 3196315 (1965-07-01), Peterson
patent: 3199481 (1965-08-01), Handwerker
patent: 3561177 (1971-02-01), Agro et al.
patent: 3813279 (1974-05-01), Vovuer
patent: 4037013 (1977-07-01), Sprague
patent: 4807394 (1989-02-01), Lyon

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