An acoustic enhancement device adapted for being placed on a support and under a covering, and containing a first flexible layer adapted for being placed facing the support, a second rigid layer joined to the first flexible layer and adapted for being placed opposite the support, and a damping element, wherein the damping element is integrated in the second rigid layer or forms a third layer placed on the second rigid layer and opposite the first flexible layer.

 
Web www.patentalert.com

< Large Particle, High Mineral Purity Delaminated Kaolins and Methods of Preparing and Using Same

> METHODS AND SYSTEMS FOR ENHANCING MERCURY, SELENIUM AND HEAVY METAL REMOVAL FROM FLUE GAS

> Tubular Conveyor Belt

~ 00575