(19)

(11)

EP 3 884 122 A1

(12)

(43) Date of publication: 29.09.2021 Bulletin 2021/39 (21) Application number: 19808672.0 (22) Date of filing: 19.11.2019

(51) International Patent Classification (IPC):  E04B 1/76(2006.01) E04H 9/02(2006.01) E04G 23/02(2006.01) E04C 2/288(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/762; E04C 2/288; E04G 23/0296; E04H 9/027; E04G 23/0218 (86) International application number: PCT/IB2019/059930 (87) International publication number: WO 2020/104940 (28.05.2020 Gazette 2020/22)

(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: 20.11.2018 IT 201800010471 (71) Applicant: ATMA Engineering S.A.S. di Claudio Azzolini & C. 43125 Parma (IT)	(72) Inventor: AZZOLINI, Claudio 43052 Colorno - Parma (IT) (74) Representative: Dondi, Silvia  Bugnion S.p.A. Largo Michele Novaro, 1/A 43121 Parma 43121 Parma (IT)