(19)

(11)

EP 4 816 717 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24821610.3 (22) Date of filing: 28.11.2024

(51) International Patent Classification (IPC):  F16J 15/00(2006.01) F16J 15/34(2006.01) F16J 15/16(2006.01) (52) Cooperative Patent Classification (CPC): F16J 15/164; F16J 15/002; F16J 15/3456; F16J 15/346 (86) International application number: PCT/NL2024/050638 (87) International publication number: WO 2025/116729 (05.06.2025 Gazette 2025/23)

(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: 01.12.2023 NL 2036399 (71) Applicant: Lagersmit Sealing Solutions B.V. 2952 DD Alblasserdam (NL)	(72) Inventor: BOONSTRA, Sjoerd 4005 CE Tiel (NL) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)