(19)
(11) EP 3 992 539 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.08.2022 Bulletin 2022/33

(43) Date of publication A2:
04.05.2022 Bulletin 2022/18

(21) Application number: 21204887.0

(22) Date of filing: 26.10.2021
(51) International Patent Classification (IPC): 
F24F 11/79(2018.01)
F24F 13/14(2006.01)
F24F 13/08(2006.01)
F24F 13/15(2006.01)
 F24F 7/08(2006.01)
F24F 13/24(2006.01)
F24F 13/10(2006.01)
F24F 13/02(2006.01)
(52) Cooperative Patent Classification (CPC):
F24F 7/08; F24F 13/24; F24F 11/79; F24F 13/08; F24F 13/10; F24F 13/14; F24F 13/15; F24F 13/02
(84) Designated Contracting States:
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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 02.11.2020 GB 202017354

(71) Applicant: Monodraught Limited
High Wycombe, Buckinghamshire HP12 3SE (GB)

(72) Inventors:
  • HOPPER, Nick
    High Wycombe, HP12 3SE (GB)
  • VAZIRIAN, Mohsen
    High Wycombe, HP12 3SE (GB)

(74) Representative: Swindell & Pearson Limited 
48 Friar Gate
Derby DE1 1GY
Derby DE1 1GY (GB)

   


(54) VENTILATION APPARATUSES


(57) An air vent blade 100 for directing an air stream 101 from a ventilation device 400, wherein the air vent blade is elongate and wherein a width 100w of the air vent blade varies along the length of the air vent blade.







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