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Title
Schallabsorber
Date Issued
1999
Author(s)
Fuchs, H.V.
Zha, X.
Patent No
1997-19754107
Abstract
Sound absorber comprises micro-perforated foils or thin sheets positioned in any desired relationship to one another and suspended vertically or at an angle from a room ceiling. Preferably, the foils or sheets comprises plastic (e.g. polyester), metal (e.g. copper, iron, steel, zinc or aluminium) or wood and have dimensions of 0.05-10 mm thickness, 10-200 cm width and 30-300 cm length. Also claimed is a sound absorber having a size corresponding to at least 15% of the room plan area. USE - Used as a sound absorber for suspension e.g. from a hall ceiling. ADVANTAGE - Compared with resonator type sound absorbers, the sound absorber is less expensive to produce, is easier to clean, has low space requirement and weight and avoids condensation problems.
Language
de
Institute
Patenprio
DE 1997-19754107 A: 19971205