(19)

(11)

EP 4 106 889 A1

(12)

(43) Date of publication: 28.12.2022 Bulletin 2022/52 (21) Application number: 21756909.4 (22) Date of filing: 19.02.2021

(51) International Patent Classification (IPC):  A63B 22/06(2006.01) A63B 69/32(2006.01) A63B 69/20(2006.01) (52) Cooperative Patent Classification (CPC): A63B 69/32; A63B 22/0605; A63B 2024/004; A63B 2225/54; A63B 2220/801; A63B 2225/74; A63B 2225/50; A63B 2225/20; A63B 2225/107; A63B 71/145; A63B 71/0669; A63B 2071/0683; A63B 2024/0068; A63B 2024/0081; A63B 2230/062; A63B 2024/0096; A63B 2220/808; A63B 2071/068; A63B 71/0622; A63B 2230/75; A63B 21/002; A63B 2071/0694; A63B 2220/806; A63B 71/0686; A63B 2220/30; A63B 21/0052; A63B 21/225; A63B 21/4034; A63B 2071/025 (86) International application number: PCT/IB2021/051429 (87) International publication number: WO 2021/165908 (26.08.2021 Gazette 2021/34)

(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: 21.02.2020 US 202062979677 P 21.02.2020 US 202062979746 P (71) Applicant: BRIEL, Louwrens, Jakobus Western Cape 6560 (ZA)	(72) Inventors: EKSTEEN, Andries Stephanus 6625 Western Cape (ZA) BRIEL, Louwrens Jakobus 6560 Western Cape (ZA) (74) Representative: Berggren Oy  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)