(19)

(11)

EP 4 226 051 A1

(12)

(43) Date of publication: 16.08.2023 Bulletin 2023/33 (21) Application number: 20956627.2 (22) Date of filing: 08.10.2020

(51) International Patent Classification (IPC):  F15B 15/22(2006.01) (52) Cooperative Patent Classification (CPC): F15B 2211/8855; F15B 15/222 (86) International application number: PCT/FI2020/050664 (87) International publication number: WO 2022/074284 (14.04.2022 Gazette 2022/15)

(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 (71) Applicant: Pimatic Oy 32700 Huittinen (FI)	(72) Inventor: ROPPONEN, Vesa 99800 Ivalo (FI) (74) Representative: Salomäki, Juha Kari Ensio  Salomaki Oy Kankurinkatu 4-6 05800 Hyvinkää 05800 Hyvinkää (FI)