(19)

(11)

EP 4 689 319 A1

(12)

(43) Date of publication: 11.02.2026 Bulletin 2026/07 (21) Application number: 23751043.3 (22) Date of filing: 09.08.2023

(51) International Patent Classification (IPC):  E04F 15/024(2006.01) E04F 15/02(2006.01) (52) Cooperative Patent Classification (CPC): E04F 15/02452; E04F 2015/0205; E04F 15/0247 (86) International application number: PCT/EP2023/072035 (87) International publication number: WO 2024/199691 (03.10.2024 Gazette 2024/40)

(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: 29.03.2023 IT 202300006027 (71) Applicant: Impertek S.r.l. 30022 Ceggia (IT)	(72) Inventor: GIACOMINI, Federico 30016 Jesolo (IT) (74) Representative: Modiano, Micaela Nadia et al Modiano & Partners Via Meravigli, 16 20123 Milano 20123 Milano (IT)