EP 1319109 A1 20030618 - SOUND ATTENUATOR
Title (en)
SOUND ATTENUATOR
Title (de)
SCHALLDÄMPFER
Title (fr)
ATTENUATEUR DE SON
Publication
Application
Priority
- SE 0101983 W 20010917
- SE 0003350 A 20000918
Abstract (en)
[origin: WO0227118A1] A ventilating system for transport of air in environments with requirements concerning sound comprising a plurality of channel sections and a sound-attenuating device comprising both active and passive sound attenuation. The passive sound attenuation comprises a reactive part and a resistive part, and the active, the reactive and the resistive attenuation are adapted to attend to attenuation within separate frequency ranges.
IPC 1-7
IPC 8 full level
F24F 13/24 (2006.01); G10K 11/178 (2006.01)
CPC (source: EP US)
F24F 13/24 (2013.01 - EP US); G10K 11/17861 (2017.12 - EP US); G10K 11/17881 (2017.12 - EP US); F24F 2013/242 (2013.01 - EP); F24F 2013/247 (2013.01 - EP); G10K 2210/104 (2013.01 - EP); G10K 2210/112 (2013.01 - EP); G10K 2210/3224 (2013.01 - EP); G10K 2210/509 (2013.01 - EP)
Citation (search report)
See references of WO 0227118A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0227118 A1 20020404; AU 8817801 A 20020408; EP 1319109 A1 20030618; SE 0003350 D0 20000918
DOCDB simple family (application)
SE 0101983 W 20010917; AU 8817801 A 20010917; EP 01967895 A 20010917; SE 0003350 A 20000918