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PETZOLDT THOMAS: Formkörper zur absorption, reflektion und/oder dämpfung von luftschallwellen (DE), Shaped article for absorbing, reflecting and/or attenuating airborne sound waves (EN). PETZOLDT THOMAS, March 3, 2011: WO/2011/024034

The invention relates to a shaped article (1) for absorbing, reflecting and attenuating airborne sound waves, the article comprising two groups of plate elements (30, 31) that intersect each other and are connected to each other at the intersecting points (81) by connecting slots. The shape of the s ...