(19)
(11) EP 4 314 569 A1

(12)

(43) Date of publication:
07.02.2024 Bulletin 2024/06

(21) Application number: 22723182.6

(22) Date of filing: 24.03.2022
(51) International Patent Classification (IPC): 
F04D 29/38(2006.01)
(52) Cooperative Patent Classification (CPC):
F04D 29/384; F04D 29/386; F05D 2240/303; F04D 25/0613
(86) International application number:
PCT/IB2022/052728
(87) International publication number:
WO 2022/201103 (29.09.2022 Gazette 2022/39)
(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: 25.03.2021 PL 43741321

(71) Applicants:
  • COOLING Spolka z ograniczona odpowiedzialnoscia
    05-806 Sokolow (PL)
  • Synergy Cooling Piotr Pietras
    05-500 Piaseczno (PL)

(72) Inventor:
  • PIETRAS, Piotr
    56-100 Wolow (PL)

(74) Representative: JD&P Patent Attorneys Joanna Dargiewicz & Partners 
Ul. Mysliborska 93A/50
03-185 Warszawa
03-185 Warszawa (PL)

   


(54) AXIAL FAN WITH SERRATED BLADE LEADING EDGES