(19)

(11)

EP 4 288 625 A1

(12)

(43) Date of publication: 13.12.2023 Bulletin 2023/50 (21) Application number: 21835848.9 (22) Date of filing: 15.12.2021

(51) International Patent Classification (IPC):  E04H 12/20(2006.01) E04H 17/22(2006.01) E04H 17/08(2006.01) E04H 17/20(2006.01) (52) Cooperative Patent Classification (CPC): E04H 12/20; E04H 17/08; E04H 17/23 (86) International application number: PCT/IB2021/061781 (87) International publication number: WO 2022/167860 (11.08.2022 Gazette 2022/32)

(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: 02.02.2021 IT 202100002084 (71) Applicant: TLS Engineering S.r.l. 00198 Roma (IT)	(72) Inventor: CALAMANI, Stefano 00197 Roma (IT) (74) Representative: Long, Giorgio  Jacobacci & Partners S.p.A. Via Senato, 8 20121 Milano 20121 Milano (IT)