EP 3746721 A4 20211020 - AN AIR VENT
Title (en)
AN AIR VENT
Title (de)
ENTLÜFTUNG
Title (fr)
ÉVENT D'AÉRATION
Publication
Application
Priority
- SE 1850117 A 20180201
- SE 2019050069 W 20190129
Abstract (en)
[origin: WO2019151931A1] An air vent (1a) for installation in a wall (2) of a building for directing a flow of air into a room of the building, the air vent comprising: - a housing (3) defining a cavity (4), wherein a sound absorbing material is arranged within the cavity; - an air inlet tube (7) for guiding air into the cavity; - an air outlet tube (8) for guiding air out of the cavity; wherein each of a volume of the air inlet tube and a volume of the air outlet tube are smaller than a volume of the cavity, and wherein the cavity has a larger cross-sectional area than each of the air inlet tube and the air outlet tube, such that the cavity together with the air inlet tube and the air outlet tube form a reactive silencer.
IPC 8 full level
F24F 13/24 (2006.01); F24F 7/00 (2021.01); F24F 13/06 (2006.01); F24F 13/062 (2006.01); G10K 11/16 (2006.01); G10K 11/162 (2006.01)
CPC (source: EP SE US)
F24F 7/00 (2013.01 - EP); F24F 13/06 (2013.01 - SE); F24F 13/062 (2013.01 - EP US); F24F 13/24 (2013.01 - EP SE); G10K 11/16 (2013.01 - EP); F24F 2007/0025 (2021.01 - EP SE US); F24F 2013/242 (2013.01 - EP SE); G10K 11/162 (2013.01 - EP)
Citation (search report)
- [XYI] JP 2007322043 A 20071213 - MATSUSHITA ELECTRIC IND CO LTD
- [X] US 3789747 A 19740205 - FARRAR E, et al
- [XY] WO 0173348 A1 20011004 - MET PRO CORP [US]
- [Y] WO 0171261 A1 20010927 - FRESHMAN FLIMMER AB [SE], et al
- See also references of WO 2019151931A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019151931 A1 20190808; EP 3746721 A1 20201209; EP 3746721 A4 20211020; SE 1850117 A1 20190802
DOCDB simple family (application)
SE 2019050069 W 20190129; EP 19747424 A 20190129; SE 1850117 A 20180201