(19)

(11)

EP 4 240 499 A1

(12)

(43) Date of publication: 13.09.2023 Bulletin 2023/37 (21) Application number: 21918094.0 (22) Date of filing: 03.11.2021

(51) International Patent Classification (IPC):  A63B 21/00(2006.01) A63B 23/04(2006.01) A63B 71/04(2006.01) (52) Cooperative Patent Classification (CPC): A63B 5/16; A63B 21/00047; A63B 21/4029; A63B 21/4033; A63B 23/0458; A63B 71/0036; A63B 71/0054; A63B 71/023; A63B 2071/0063; A63B 2071/0694; A63B 2209/00; A63B 2209/02; A63B 2209/08; A63B 2209/10; A63B 2210/50; A63B 2225/093; A63B 2225/62; A63B 2225/76 (86) International application number: PCT/US2021/072200 (87) International publication number: WO 2022/150227 (14.07.2022 Gazette 2022/28)

(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: 06.11.2020 US 202017091685 (71) Applicant: Park, Chad, Chaehong Dallas, TX 75229 (US)	(72) Inventors: ANDRASFI, Csaba Oakdale, MN 55128 (US) PARK, Chad Chaehong Dallas, TX 75229 (US) (74) Representative: Grättinger Möhring von Poschinger Patentanwälte Partnerschaft mbB  Wittelsbacherstrasse 2b 82319 Starnberg 82319 Starnberg (DE)