Global Patent Index - EP 1319109 A1

EP 1319109 A1 2003-06-18 - SOUND ATTENUATOR

Title (en)

SOUND ATTENUATOR

Title (de)

SCHALLDÄMPFER

Title (fr)

ATTENUATEUR DE SON

Publication

EP 1319109 A1 (EN)

Application

EP 01967895 A

Priority

  • SE 0101983 W
  • SE 0003350 A

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 (main, further and additional classification)

E04F 17/00; F24F 13/24; G10K 11/178

IPC 8 full level (invention and additional information)

F24F 13/24 (2006.01); G10K 11/178 (2006.01)

CPC (invention and additional information)

F24F 13/24 (2013.01); G10K 11/178 (2013.01); F24F 2013/242 (2013.01); F24F 2013/247 (2013.01); G10K 2210/104 (2013.01); G10K 2210/112 (2013.01); G10K 2210/3224 (2013.01); G10K 2210/509 (2013.01)

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

WO 0227118 A1 20020404; AU 8817801 A 20020408; EP 1319109 A1 20030618; SE 0003350 D0 20000918