(19)

(11)

EP 4 531 631 A1

(12)

(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23734071.6 (22) Date of filing: 30.05.2023

(51) International Patent Classification (IPC):  A47B 23/04(2006.01) (52) Cooperative Patent Classification (CPC): A47B 2023/049; A47B 23/043 (86) International application number: PCT/IT2023/000019 (87) International publication number: WO 2023/233435 (07.12.2023 Gazette 2023/49)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 01.06.2022 IT 202200011711 (71) Applicant: Branchini, Ivan 46037 Roncoferraro (Mantova) (IT)	(72) Inventor: Branchini, Ivan 46037 Roncoferraro (Mantova) (IT)