(19)

(11)

EP 3 701 149 A1

(12)

(43) Date of publication: 02.09.2020 Bulletin 2020/36 (21) Application number: 18789224.5 (22) Date of filing: 03.10.2018

(51) International Patent Classification (IPC):  F04B 43/02(2006.01) F04B 53/22(2006.01) F04B 53/16(2006.01) (86) International application number: PCT/IB2018/057669 (87) International publication number: WO 2019/082002 (02.05.2019 Gazette 2019/18)

(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: 26.10.2017 IT 201700121760 (71) Applicant: Annovi Reverberi S.p.A. 41122 Modena (IT)	(72) Inventor: ORLANDINI, Giuseppe 42048 Rubiera (RE) (IT) (74) Representative: Corradini, Corrado et al Ing. C. Corradini & C. S.r.l. Via Dante Alighieri 4 42121 Reggio Emilia 42121 Reggio Emilia (IT)