(19)

(11)

EP 3 947 883 A1

(12)

(43) Date of publication: 09.02.2022 Bulletin 2022/06 (21) Application number: 20721304.2 (22) Date of filing: 02.04.2020

(51) International Patent Classification (IPC):  E06B 3/20(2006.01) E06B 7/14(2006.01) E06B 3/54(2006.01) (52) Cooperative Patent Classification (CPC): E06B 3/54; E06B 3/205; E06B 7/14 (86) International application number: PCT/IB2020/053130 (87) International publication number: WO 2020/202051 (08.10.2020 Gazette 2020/41)

(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: 03.04.2019 IT 201900004990 (71) Applicant: MAURI & C. S.n.C. di Carlo Mauri e C. 20833 Giussano (Monza Brianza) (IT)	(72) Inventor: MAURI, Carlo 20833 Giussano (Monza Brianza) (IT) (74) Representative: Tansini, Elio Fabrizio  Bugnion S.p.A. Viale Lancetti 17 20158 Milano 20158 Milano (IT)