Abstract: An acoustic panel includes a main body portion having a substantially planar front surface for orientation toward a sound source and an opposite, substantially convoluted rear surface. An airflow-resistive layer of material is secured to the planar front surface in face-to-face contacting relationship. The airflow-resistive layer of material may have a specific airflow resistance of between about 50-20,000 mks rayls, and may be configured to attenuate sound at one or more predetermined frequencies. A depth of convolution of the rear surface is between about forty percent to about seventy-five percent (40%-75%) of a thickness of the main body portion.
Type:
Grant
Filed:
April 21, 2011
Date of Patent:
July 31, 2012
Assignees:
Precision Fabrics Group, Inc., Pinta Acoustic, Inc.
Inventors:
Mark Frederick, Michael L. Dinsmore, James Check, Richard James Bliton