(19)

(11)

EP 2 771 530 A1

(12)

(43) Date of publication: 03.09.2014 Bulletin 2014/36 (21) Application number: 12778109.4 (22) Date of filing: 24.10.2012

(51) International Patent Classification (IPC):  E06B 3/46(2006.01) (86) International application number: PCT/EP2012/071063 (87) International publication number: WO 2013/060727 (02.05.2013 Gazette 2013/18)

(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 (30) Priority: 27.10.2011 IT MI20111951 (71) Applicant: PROTEK S.R.L. 23873 Missaglia (Prov. of Lecco) (IT)	(72) Inventors: MAGGIONI, Maurizio I-23891 Barzano' (IT) MAGGIONI, Giovanni I-23891 Barzano' (IT) (74) Representative: Modiano, Micaela Nadia  Modiano & Partners (IT) Via Meravigli, 16 20123 Milano 20123 Milano (IT)