(19)

(11)

EP 4 430 246 A1

(12)

(43) Date of publication: 18.09.2024 Bulletin 2024/38 (21) Application number: 22817817.4 (22) Date of filing: 11.11.2022

(51) International Patent Classification (IPC):  E01F 15/08(2006.01) (52) Cooperative Patent Classification (CPC): E01F 15/085; E01F 15/088 (86) International application number: PCT/IB2022/060870 (87) International publication number: WO 2023/084462 (19.05.2023 Gazette 2023/20)

(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: 11.11.2021 IT 202100028742 (71) Applicant: Katech S.r.l. 95126 Catania (CT) (IT)	(72) Inventor: AIELLO, Valerio Salvatore 95126 Catania (CT) (IT) (74) Representative: Robba, Pierpaolo  Interpatent S.R.L. Via Caboto, 35 10129 Torino 10129 Torino (IT)