(19)

(11)

EP 4 531 641 A1

(12)

(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23812225.3 (22) Date of filing: 06.05.2023

(51) International Patent Classification (IPC):  A47L 9/02(2006.01) A47L 9/06(2006.01) (52) Cooperative Patent Classification (CPC): A47L 9/0606; A47L 9/0693 (86) International application number: PCT/NO2023/050106 (87) International publication number: WO 2023/229465 (30.11.2023 Gazette 2023/48)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 27.05.2022 NO 20220618 (71) Applicant: Advac AS 3790 Helle (NO)	(72) Inventor: ANDERSSON, Inge 3770 KRAGERØ (NO) (74) Representative: Papula Oy  P.O. Box 981 00101 Helsinki 00101 Helsinki (FI)