Acoustical panel having a honeycomb structure and method of making the same
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United States of America Patent
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Jan 10, 2006
Grant Date -
Sep 25, 2003
app pub date -
Mar 7, 2003
filing date -
Oct 1, 1999
priority date (Note) -
Expired
status (Latency Note)
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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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