(19)

(11)

EP 4 229 246 A1

(12)

(43) Date of publication: 23.08.2023 Bulletin 2023/34 (21) Application number: 21882222.9 (22) Date of filing: 18.10.2021

(51) International Patent Classification (IPC):  E03C 1/042(2006.01) E04F 11/18(2006.01) A47K 3/28(2006.01) (52) Cooperative Patent Classification (CPC): A47K 3/003; A47K 3/281; E03C 1/042; E03C 1/0412 (86) International application number: PCT/FI2021/050692 (87) International publication number: WO 2022/084583 (28.04.2022 Gazette 2022/17)

(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: 19.10.2020 FI 20206029 (71) Applicant: Humantool Oy 02170 Espoo (FI)	(72) Inventor: LIMINGOJA, Antti 02170 Espoo (FI) (74) Representative: Primrose Oy  Unioninkatu 24 00130 Helsinki 00130 Helsinki (FI)