Noise barrier structure with sound-absorbing and sound-redirecting properties, and high performance sound absorber for use in such structure
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United States of America Patent
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Jan 6, 2015
Grant Date -
Oct 2, 2014
app pub date -
Feb 6, 2012
filing date -
Feb 7, 2011
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Abstract
A noise structure having a barrier made of a generally sound redirecting material defining a surface of the barrier, and a plurality of sound absorbing boxes connected to this surface, each box comprising a rear wall and an extensively perforated front wall, the walls defining a longitudinal channel at least partially occupied by a filling made of a sound absorbing material, in which the rear wall is a substantially flat plane wall assembled parallel to and spaced apart from the surface of the barrier and is in its turn extensively perforated.
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