Patent ID: 9732677
Date: 2017-08-15
CPC Classifications: B64D,G10K

Claim:
1. An acoustic panel comprising: a core; a permeable skin coupled to a first side of the core; a permeable septum coupled to a second side of the core opposite the first side; the core, the permeable skin, and the permeable septum forming a plurality of cells; a back skin; and a dividing wall extending between the permeable septum and the back skin, wherein the permeable septum, the dividing wall, and the back skin define a first back cavity, wherein a volume of the first back cavity is greater than a volume of a first cell in the plurality of cells, wherein a height of the first back cavity is less than a height of the plurality of cells, and wherein the first back cavity is in fluid communication through the permeable septum with a plurality of the plurality of cells.