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EP 4 065 246 A1

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(43) Date of publication: 05.10.2022 Bulletin 2022/40 (21) Application number: 20892837.4 (22) Date of filing: 25.11.2020

(51) International Patent Classification (IPC):  A63B 53/04(2015.01) A63B 53/08(2015.01) A63B 53/06(2015.01) (52) Cooperative Patent Classification (CPC): A63B 53/0466; A63B 2053/0491; A63B 2209/00; A63B 53/0433; A63B 53/0437; A63B 60/006; A63B 53/0454; A63B 53/0408 (86) International application number: PCT/US2020/062434 (87) International publication number: WO 2021/108723 (03.06.2021 Gazette 2021/22)

(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: 26.11.2019 US 201962940799 P 12.02.2020 US 202016789261 13.02.2020 US 202062976229 P 24.04.2020 US 202063015398 P 24.07.2020 WO PCT/US2020/043483 24.08.2020 WO PCT/US2020/047702 (71) Applicant: Karsten Manufacturing Corporation Phoenix, AZ 85029 (US)

(72) Inventors: JERTSON, Martin R. Phoenix, Arizona 85029 (US) HENRIKSON, Erik M. Phoenix, Arizona 85029 (US) PENDRED, Samuel J. Phoenix, Arizona 85029 (US) POPE, Jeremy S. Phoenix, Arizona 85029 (US) SPACKMAN, Clayson C. Phoenix, Arizona 85029 (US) BACON, Cory S. Phoenix, Arizona 85029 (US) (74) Representative: Tombling, Adrian George  Withers & Rogers LLP 2 London Bridge London SE1 9RA London SE1 9RA (GB)