EP 0931309 A1 19990728 - DEVICE FOR ABSORBING AND/OR DAMPING SOUND WAVES
Title (en)
DEVICE FOR ABSORBING AND/OR DAMPING SOUND WAVES
Title (de)
EINRICHTUNG ZUM ABSORBIEREN UND/ODER DÄMPFEN VON SCHALLWELLEN
Title (fr)
DISPOSITIF POUR ABSORBER ET/OU AMORTIR DES ONDES SONORES
Publication
Application
Priority
- DE 29617845 U 19961014
- EP 9704258 W 19970805
Abstract (en)
[origin: US6305494B1] A device for absorbing and/or damping sound waves has a system for damping and/or silencing sound waves provided with a thin vibratory layer (1) on the side facing the sound waves. In order to improve sound damping and silencing properties, even during a prolonged use with concomitant exposure to strong heat, the thin vibratory layer (1) is made of aluminum or an aluminum alloy and is 0.004 to 0.35 mm thick.
IPC 1-7
IPC 8 full level
G10K 11/16 (2006.01); G10K 11/162 (2006.01); B60R 13/08 (2006.01); G10K 11/168 (2006.01); G10K 11/172 (2006.01)
CPC (source: EP KR US)
G10K 11/168 (2013.01 - KR); G10K 11/172 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE ES FR GB IT NL PT SE
DOCDB simple family (publication)
US 6305494 B1 20011023; AT E230887 T1 20030115; CZ 132299 A3 19991117; CZ 294793 B6 20050316; DE 29617845 U1 19980212; DE 59709111 D1 20030213; EP 0931309 A1 19990728; EP 0931309 B1 20030108; ES 2185987 T3 20030501; HU P0001117 A2 20000828; HU P0001117 A3 20030128; JP 2001507470 A 20010605; JP 3553614 B2 20040811; KR 100381740 B1 20030426; KR 20000049116 A 20000725; PL 185933 B1 20030930; PL 332825 A1 19991011; PT 931309 E 20030430; WO 9816915 A1 19980423
DOCDB simple family (application)
US 28455999 A 19990726; AT 97938876 T 19970805; CZ 132299 A 19970805; DE 29617845 U 19961014; DE 59709111 T 19970805; EP 9704258 W 19970805; EP 97938876 A 19970805; ES 97938876 T 19970805; HU P0001117 A 19970805; JP 51794098 A 19970805; KR 19997003198 A 19990413; PL 33282597 A 19970805; PT 97938876 T 19970805