(19)

(11)

EP 4 188 565 A1

(12)

(43) Date of publication: 07.06.2023 Bulletin 2023/23 (21) Application number: 21766210.5 (22) Date of filing: 29.07.2021

(51) International Patent Classification (IPC):  A63C 17/00(2006.01) A63C 17/01(2006.01) (52) Cooperative Patent Classification (CPC): A63C 17/0046; A63C 2203/20; A63C 17/013; A63C 17/015; A63C 17/017 (86) International application number: PCT/IB2021/056929 (87) International publication number: WO 2022/024036 (03.02.2022 Gazette 2022/05)

(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: 30.07.2020 PT 2020116615 (71) Applicant: Alcance Gradual, Lda 2580-132 Cadafais (PT)	(72) Inventor: MORGADO, Miguel 1170-399 Lisboa (PT) (74) Representative: Patentree  Edificio Net Rua de Salazares, 842 4149-002 Porto 4149-002 Porto (PT)