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A platform for research: civil engineering, architecture and urbanism
Composite sound absorber
A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive nonwoven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m
Composite sound absorber
A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive nonwoven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m
Composite sound absorber
COATES MICHAEL WILLIAM (author) / KIERZKOWSKI MAREK (author) / GIBBONS PHILIP JOHN (author)
2015-06-04
Patent
Electronic Resource
English
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
Sound absorber, sound absorber assembly and an engine with a sound absorber assembly
| European Patent Office | 2016