(19)

(11)

EP 3 938 586 A1

(12)

(43) Date of publication: 19.01.2022 Bulletin 2022/03 (21) Application number: 19725780.1 (22) Date of filing: 11.03.2019

(51) International Patent Classification (IPC):  E03C 1/04(2006.01) (52) Cooperative Patent Classification (CPC): E03C 2201/30; E03C 1/0408 (86) International application number: PCT/IT2019/000020 (87) International publication number: WO 2020/183501 (17.09.2020 Gazette 2020/38)

(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 (71) Applicant: Nikles Tec Italia S.r.l. 25013 Carpenedolo Brescia (IT)	(72) Inventor: NIKLES, Gerhard 25013 Carpenedolo (BS) (IT) (74) Representative: Chimini, Francesco  Jacobacci & Partners S.p.A. Piazza della Vittoria 11 25122 Brescia 25122 Brescia (IT)