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Title
Reinigbarer Schalldaempfer (SD) fuer Kanaele fuer tiefe Frequenzen
Date Issued
2003
Author(s)
Fuchs, H.V.
Brandstaett, P.
Heizmann, M.
Eckoldt, D.
Rambausek, N.
Patent No
1996-19612572
Abstract
The channel (1) contains perforated pieces (3) of different lengths. These are connected with chambers (4) outside the channel which form sound absorbers. The channels and or pieces are made of sheet metal, plastics, concrete or brick. The chambers can be cleaned periodically or continuously by fixed or movable nozzles (9). The chambers are connected with pipes (8) for cleaning agent via valves or other adjustments (7). ADVANTAGE - The sound absorber contains no acoustically active porous absorption material and is unaffected by dirt.
Language
de
Institute
Patenprio
DE 1996-19612572 A: 19960329