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(11)

EP 4 580 827 A1

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(43) Date of publication: 09.07.2025 Bulletin 2025/28 (21) Application number: 23940934.5 (22) Date of filing: 16.11.2023

(51) International Patent Classification (IPC):  B23K 20/10(2006.01) B29C 65/08(2006.01) B23K 37/04(2006.01) H01R 43/02(2006.01) (86) International application number: PCT/US2023/079977 (87) International publication number: WO 2025/106077 (22.05.2025 Gazette 2025/21)

(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 (71) Applicant: Tech-Sonic, Inc. Dublin, Ohio 43017 (US)	(72) Inventors: CYPHERT, David, Lee Canal Winchester, OH 43110 (US) OU, Byoung, Soo Dublin, OH 43016 (US) (74) Representative: Ipsilon Benelux  76, rue de Merl 2146 Luxembourg 2146 Luxembourg (LU)