Acoustics – Sound-modifying means – Space absorbers
Patent
1997-03-12
1998-07-14
Dang, Khanh
Acoustics
Sound-modifying means
Space absorbers
181285, E04B 182
Patent
active
057807850
ABSTRACT:
An acoustic absorption device preferably includes a platform having a rectangularly-shaped top surface and four side surfaces, each of the surfaces comprising a perforated material. A plurality of spires upstand from the top surface, the spires extending from a first to an opposite second of the sides. A first of the spires is provided with a wall surface comprising a continuation of a third of the platform side surfaces to form a device first planar end, and a second of the spires is provided with a wall surface comprising a continuation of a fourth of the platform side surfaces to form a device second planar end. The spires are spaced one from another to form a channel therebetween. The spires are at least in part covered with the perforated material. The platform and the spires each house a body of sound absorbing material.
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