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(11)

EP 2 652 424 A1

(12)

(43) Date of publication: 23.10.2013 Bulletin 2013/43 (21) Application number: 11813403.0 (22) Date of filing: 14.12.2011

(51) International Patent Classification (IPC):  F27D 1/02(2006.01) F27D 1/14(2006.01) (86) International application number: PCT/IB2011/055671 (87) International publication number: WO 2012/080966 (21.06.2012 Gazette 2012/25)

(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: 14.12.2010 IT VR20100240 (71) Applicant: Siti - B&T Group S.p.A. 41043 Formigine (Modena) (IT)	(72) Inventor: CANTARELLI, Lanfranco I-41043 Formigine (Modena) (IT) (74) Representative: Feltrinelli, Secondo Andrea et al APTA S.r.l. Patent Department Via Ca' di Cozzi, 41 37124 Verona 37124 Verona (IT)