Patent ID: 8051950

Claim:
A sound shield, comprising: (i) a first layer of foam; (ii) two sound insulators, wherein each sound insulator comprises: a sound suppression blanket including an assembly of connected particles; wherein the connected particles include particles adjacent to one another that are adhered to one another, the particles that are adhered to one another including particles of random shapes and random sizes; wherein interstitial space of the particles that are adhered to one another is not filled with other materials; wherein at least some of the adjacent particles that are adhered to one another are connected and arranged such that adjacent particles have different resonant frequencies and vibrate at their respective resonant frequencies independently from one another in response to sound waves; (iii) a second layer of foam interposed between the two sound insulators; and (iv) a third layer of foam, wherein the two sound insulators are interposed between the first layer of foam and the third layer of foam.