Acoustic attenuation materials

Details Acoustic attenuation materials Acoustic attenuation materials

2007-07-31

2007-07-31

Martin, Edgardo San (Department: 2837)

Acoustics

Sound-modifying means

Sound absorbing panels

C181S207000, C181S209000

Reexamination Certificate

active

10837054

ABSTRACT:
Acoustic attenuation materials are described that comprise outer layers of a stiff material sandwiching a relatively soft elastic material therebetween, with means such as spheres, discs or wire mesh being provided within the elastic material for generating local mechanical resonances that function to absorb sound energy at tunable wavelengths.

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