Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate
2006-01-10
2006-01-10
San Martin, Edgardo (Department: 2837)
Acoustics
Sound-modifying means
Sound absorbing panels
C181S294000, C181S288000, C052S144000
Reexamination Certificate
active
06983821
ABSTRACT:
An acoustically absorbent porous panel with a layer constructed from a substantially continuous open-celled porous material comprising a cured foamed cementitious material including a first face and a second face. The first face has a surface with a substantially planar profile and the second face has a substantially geometric pattern of depressions formed therein comprising approximately 50% to approximately 90% of the layer by volume.
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Putt Dean L.
Work James L.
AWI Licensing Company
Martin Edgardo San
LandOfFree
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