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EP 4 196 679 A1

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(43) Date of publication: 21.06.2023 Bulletin 2023/25 (21) Application number: 21789892.3 (22) Date of filing: 13.08.2021

(51) International Patent Classification (IPC):  F04B 1/113(2020.01) F04B 53/16(2006.01) F04B 1/1136(2020.01) F04B 53/22(2006.01) (52) Cooperative Patent Classification (CPC): F04B 1/113; F04B 1/1136; F04B 53/16; F04B 53/22 (86) International application number: PCT/SK2021/050010 (87) International publication number: WO 2022/035383 (17.02.2022 Gazette 2022/07)

(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: 13.08.2020 SK PP932020 (71) Applicant: Up-Steel, S.R.O. 914 43 Horné Srnie (SK)	(72) Inventors: URBAN, Lubos 914 21 Horné Srnie (SK) PAVLACKA, Ján Dubnica nad Váhom (SK) (74) Representative: Kubinyi, Peter  Piaristicka 9 911 01 Trencin 911 01 Trencin (SK)