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(11)

EP 4 374 070 A1

(12)

(43) Date of publication: 29.05.2024 Bulletin 2024/22 (21) Application number: 22744849.5 (22) Date of filing: 20.07.2022

(51) International Patent Classification (IPC):  F04B 33/00(2006.01) F04B 39/12(2006.01) B25B 11/00(2006.01) F04B 39/00(2006.01) F04B 49/10(2006.01) (52) Cooperative Patent Classification (CPC): F04B 33/00; F04B 49/10; F04B 2205/07; F04B 2207/701; F04B 2207/042; F04B 39/0005; F04B 39/121 (86) International application number: PCT/NL2022/050424 (87) International publication number: WO 2023/003463 (26.01.2023 Gazette 2023/04)

(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: 20.07.2021 NL 2028795 (71) Applicant: Airtender Works B.V. 2718 RV Zoetermeer (NL)	(72) Inventors: WITTEVEEN, Eelco Jan Gerardus 2718 RV Zoetermeer (NL) VAN DER HULST, Robert Franciscus 2718 RV Zoetermeer (NL) MEDEIROS SANTOS, Rui 2718 RV Zoetermeer (NL) BORJANIN, Dalibor 2718 RV Zoetermeer (NL) (74) Representative: V.O.  P.O. Box 87930 2508 DH Den Haag 2508 DH Den Haag (NL)