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(11)

EP 4 363 665 A1

(12)

(43) Date of publication: 08.05.2024 Bulletin 2024/19 (21) Application number: 22831075.1 (22) Date of filing: 30.06.2022

(51) International Patent Classification (IPC):  E01C 11/22(2006.01) E01D 19/12(2006.01) E03F 3/04(2006.01) E01C 9/10(2006.01) E02B 11/00(2006.01) E03F 5/06(2006.01) (52) Cooperative Patent Classification (CPC): E03F 5/06; E03F 2005/068; E01C 11/227 (86) International application number: PCT/AU2022/050682 (87) International publication number: WO 2023/272357 (05.01.2023 Gazette 2023/01)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.06.2021 AU 2021901991 (71) Applicant: Stormtech Pty Limited South Nowra, NSW 2541 (AU)	(72) Inventor: CREIGHTON, Troy South Nowra, New South Wales 2541 (AU) (74) Representative: Pons  Glorieta Rubén Darío 4 28010 Madrid 28010 Madrid (ES)