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(11)

EP 4 189 184 A1

(12)

(43) Date of publication: 07.06.2023 Bulletin 2023/23 (21) Application number: 21850219.3 (22) Date of filing: 28.07.2021

(51) International Patent Classification (IPC):  E03D 3/10(2006.01) E03D 5/00(2006.01) E03D 11/14(2006.01) E03D 1/08(2006.01) E03D 11/02(2006.01) E03D 11/18(2006.01) (52) Cooperative Patent Classification (CPC): E03D 11/14; E03D 5/00; E03D 3/10; E03D 9/08 (86) International application number: PCT/US2021/043459 (87) International publication number: WO 2022/026550 (03.02.2022 Gazette 2022/05)

(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: 29.07.2020 US 202063058181 P (71) Applicant: AS America, Inc. Piscataway, NJ 08845 (US)	(72) Inventor: KAPPUS, Steven D. Manville, New Jersey 08835 (US) (74) Representative: Altmann Stößel Dick Patentanwälte PartG mbB  Theodor-Heuss-Anlage 2 68165 Mannheim 68165 Mannheim (DE)