Complex noiseproof system for spatial interface

Application Number  00129494 Application Date  2000.12.29
Publication Number  1308168 Publication Date  2001.08.15
Priority Information   1999/12/29 EP 99126121.5  
Applicant(s) Name  Manfred Elsase  
Inventor(s) Name  Manfred Elsase  
Patent Agency Code  72001 Patent Agent  cheng tianzheng
AbstractThe composite sound insulation system for room boundary surfaces consists of a sound-proofing layer (D) in communication with the corresponding floor, wall, or ceiling covering (V) which preferably has an inner loss factor etaint of at least 0.1, and more particularly of at least 0.2, and of a footfall sound-proofing layer (S) adjoining the floor, wall, or ceiling covering (V) or the sound-proofing layer (D) on the side facing away from the room and having a dynamic stiffness s' of at most 20 MN/m3, preferably of at most 10 MN/m3.