(19)

(11)

EP 4 680 812 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24709463.4 (22) Date of filing: 12.03.2024

(51) International Patent Classification (IPC):  E03F 5/02(2006.01) F16L 41/00(2006.01) E03F 7/00(2006.01) F16L 55/00(2006.01) (52) Cooperative Patent Classification (CPC): E03F 5/021; E03F 2201/20; E03F 7/00; E03F 7/06 (86) International application number: PCT/EP2024/056466 (87) International publication number: WO 2024/188990 (19.09.2024 Gazette 2024/38)

(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: GE KH MA MD TN (30) Priority: 13.03.2023 EP 23161472 (71) Applicant: Nordisk Innovation ApS 8250 Egå (DK)	(72) Inventor: SØRENSEN, Flemming Lykke 8250 Egå (DK) (74) Representative: Plougmann Vingtoft a/s  Strandvejen 70 2900 Hellerup 2900 Hellerup (DK)