(19)

(11)

EP 4 135 862 A2

(12)

(88) Date of publication A3: 25.11.2021 (43) Date of publication: 22.02.2023 Bulletin 2023/08 (21) Application number: 21788835.3 (22) Date of filing: 18.04.2021

(51) International Patent Classification (IPC):  A63B 69/36(2006.01) E01C 13/08(2006.01) G06G 1/14(2006.01) (52) Cooperative Patent Classification (CPC): A63B 2220/78; A63B 69/3691; A63B 2225/093; A63B 2225/30; A63B 2243/0025; A63B 2243/007 (86) International application number: PCT/US2021/027858 (87) International publication number: WO 2021/212092 (21.10.2021 Gazette 2021/42)

(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: 18.04.2020 US 202063012114 P (71) Applicant: Elixpro Inc. Chicago, IL 60622 (US)	(72) Inventor: CANAVAN, Paul D. Chicago, IL 60640 (US) (74) Representative: btb IP Bungartz Baltzer Partnerschaft mbB Patentanwälte  Im Mediapark 6A 50670 Köln 50670 Köln (DE)