EP 0806030 B1 20000830 - l/4-SOUND ABSORBER
Title (en)
l/4-SOUND ABSORBER
Title (de)
l/4-SCALLABSORBER
Title (fr)
AMORTISSEUR DE BRUIT l/4
Publication
Application
Priority
- CH 9600002 W 19960104
- CH 22695 A 19950127
Abstract (en)
[origin: WO9623294A1] Sound absorbers of a plurality of tubular resonators (10), the sound apertures Ao of which border a common surface A and are distributed in such a way that the interaction regions Aw of said individual sound apertures Ao are distributed so as to cover the largest surface possible while not substantially overlapping. Preferred embodiments consist of extruded plastic mouldings (7, 9) of suitable mechanical rigidity and acoustic inertia.
IPC 1-7
IPC 8 full level
G10K 11/02 (2006.01); G10K 11/16 (2006.01); G10K 11/172 (2006.01)
CPC (source: EP US)
G10K 11/172 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL PT SE
DOCDB simple family (publication)
WO 9623294 A1 19960801; AR 000728 A1 19970806; BR 9606802 A 19971230; CH 690143 A5 20000515; CN 1173937 A 19980218; DE 59605821 D1 20001005; EP 0806030 A1 19971112; EP 0806030 B1 20000830; ES 2150092 T3 20001116; JP 3778935 B2 20060524; JP H10512687 A 19981202; PT 806030 E 20010131; US 5959265 A 19990928
DOCDB simple family (application)
CH 9600002 W 19960104; AR P960101035 A 19960116; BR 9606802 A 19960104; CH 22695 A 19950127; CN 96191596 A 19960104; DE 59605821 T 19960104; EP 96900025 A 19960104; ES 96900025 T 19960104; JP 52252396 A 19960104; PT 96900025 T 19960104; US 86010297 A 19971006