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EP 4 565 747 A1

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(43) Date of publication: 11.06.2025 Bulletin 2025/24 (21) Application number: 23761389.8 (22) Date of filing: 03.08.2023

(51) International Patent Classification (IPC):  E01F 9/50(2016.01) E01F 9/518(2016.01) E01F 9/506(2016.01) E01F 9/524(2016.01) (52) Cooperative Patent Classification (CPC): E01F 9/518 (86) International application number: PCT/US2023/071563 (87) International publication number: WO 2024/030986 (08.02.2024 Gazette 2024/06)

(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: 04.08.2022 US 202263395121 P 02.08.2023 US 202318363820 (71) Applicant: Potters Industries, LLC Wilmington, DE 19808 (US)	(72) Inventors: JEGANATHAN, Suruliappa Chadds Ford, Pennsylvania 19317 (US) STRICKER, Jeffrey Lee Narberth, Pennsylvania 19072 (US) GOFORTH, Kevin Chester Springs, Pennsylvania 19425 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)