(19)

(11)

EP 4 377 575 A1

(12)

(43) Date of publication: 05.06.2024 Bulletin 2024/23 (21) Application number: 22760782.7 (22) Date of filing: 27.07.2022

(51) International Patent Classification (IPC):  F15B 15/06(2006.01) F15B 15/14(2006.01) F15B 15/08(2006.01) (52) Cooperative Patent Classification (CPC): F15B 15/068; F15B 15/06; F15B 15/1404 (86) International application number: PCT/IB2022/056935 (87) International publication number: WO 2023/007392 (02.02.2023 Gazette 2023/05)

(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: 27.07.2021 IT 202100020063 (71) Applicant: Siaem S.A.S. di Carini Stefano e Paolo & C. 29013 Carpaneto Piacentino (PC) (IT)	(72) Inventor: CARINI, Paolo 29013 Carpaneto Piacentino (PC) (IT) (74) Representative: Fisauli, Beatrice A. M.  Con Lor S.p.A Via Bronzino, 8 20133 Milano 20133 Milano (IT)