(19)

(11)

EP 4 551 779 A1

(12)

(43) Date of publication: 14.05.2025 Bulletin 2025/20 (21) Application number: 23938682.4 (22) Date of filing: 06.07.2023

(51) International Patent Classification (IPC):  E04C 2/34(2006.01) E04B 2/16(2006.01) E04F 13/08(2006.01) E04B 1/62(2006.01) E04C 2/54(2006.01) (52) Cooperative Patent Classification (CPC): E04B 2/16; E04C 2/54; E04C 2/34; E04C 2/46; E04C 2/42; E04C 2/20 (86) International application number: PCT/US2023/069690 (87) International publication number: WO 2024/242711 (28.11.2024 Gazette 2024/48)

(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: 06.07.2022 US 202263367748 P (71) Applicant: Noble, Steven H. Sartell, MN 56377 (US)	(72) Inventor: Noble, Steven H. Sartell, MN 56377 (US) (74) Representative: Williams Powell  44 Prospect Place Bromley, Kent BR2 9HN Bromley, Kent BR2 9HN (GB)