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(11)

EP 3 117 028 A1

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(43) Date of publication: 18.01.2017 Bulletin 2017/03 (21) Application number: 15718575.2 (22) Date of filing: 10.03.2015

(51) International Patent Classification (IPC):  C25D 11/08(2006.01) C25D 21/10(2006.01) C25D 17/12(2006.01) C25D 11/00(2006.01) (86) International application number: PCT/IB2015/000307 (87) International publication number: WO 2015/136353 (17.09.2015 Gazette 2015/37)

(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 (30) Priority: 11.03.2014 IT MI20140385 (71) Applicant: Qualital Servizi S.r.l. 28062 Cameri (NO) (IT)	(72) Inventor: CALCATERRA, Carlo I-28062 Cameri (NO) (IT) (74) Representative: Valentini, Giuliano  Marietti Gislon e Trupiano S.r.l. Via Larga 16 20122 Milano 20122 Milano (IT)