(19)

(11)

EP 3 393 708 A1

(12)

(43) Date of publication: 31.10.2018 Bulletin 2018/44 (21) Application number: 15831233.0 (22) Date of filing: 24.12.2015

(51) International Patent Classification (IPC):  B23P 21/00(2006.01) (86) International application number: PCT/IB2015/059977 (87) International publication number: WO 2017/109557 (29.06.2017 Gazette 2017/26)

(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: MA MD (71) Applicant: O.L.C.I. Engineering S.r.l. 10128 Torino (IT)	(72) Inventor: PALETTO, Carlo I-10094 Giaveno (IT) (74) Representative: Franzolin, Luigi et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)