(19)

(11)

EP 4 824 378 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24827026.6 (22) Date of filing: 10.12.2024

(51) International Patent Classification (IPC):  E05F 15/641(2015.01) E05F 15/635(2015.01) (52) Cooperative Patent Classification (CPC): E05Y 2900/132; E05F 15/641; E05Y 2400/65; E05Y 2600/41; E05Y 2600/626; E05Y 2600/56; E05F 15/635; E05Y 2201/722; E05Y 2800/205; E05Y 2201/46; E05Y 2600/52; E05Y 2900/14; E05Y 2600/628; E05Y 2201/10; E05Y 2600/45; E05Y 2600/452 (86) International application number: PCT/EP2024/085437 (87) International publication number: WO 2025/125213 (19.06.2025 Gazette 2025/25)

(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: 11.12.2023 EP 23383273 (71) Applicant: Birkigt, S.L. 08150 Parets del Vallès (ES)	(72) Inventors: GÜELL PINILLA, David 08025 Barcelona (ES) AZOR ALONSO, Santiago 08960 Sant Just Desvern (ES) (74) Representative: ZBM Patents - Zea, Barlocci & Markvardsen  Rambla de Catalunya, 123 08008 Barcelona 08008 Barcelona (ES)