(19)

(11)

EP 4 164 756 A1

(12)

(43) Date of publication: 19.04.2023 Bulletin 2023/16 (21) Application number: 21736522.0 (22) Date of filing: 10.06.2021

(51) International Patent Classification (IPC):  A63B 23/02(2006.01) (52) Cooperative Patent Classification (CPC): A63B 23/0222; A63B 21/4033; A63B 21/00069; A63B 21/068; A63B 21/4034; A63B 21/00061; A63B 23/0482; A63B 21/00065; A63B 2023/006; A63B 69/0062; A63B 2225/09; A63B 2225/093; A63B 2210/50; A63B 2210/58; A63B 2071/065; A63B 2220/51; A63B 2225/50; A63B 21/0552 (86) International application number: PCT/EP2021/065723 (87) International publication number: WO 2021/250217 (16.12.2021 Gazette 2021/50)

(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: 10.06.2020 GB 202008763 (71) Applicant: King, Thomas James Stafford Harborough, Leicestershire LE16 7JF (GB)	(72) Inventor: King, Thomas James Stafford Harborough, Leicestershire LE16 7JF (GB) (74) Representative: Stanley, David William  Stanleys Intellectual Property Suite LP44050 20-22 Wenlock Road London, N1 7GU London, N1 7GU (GB)