(19)

(11)

EP 2 904 121 A1

(12)

(43) Date of publication: 12.08.2015 Bulletin 2015/33 (21) Application number: 13811616.5 (22) Date of filing: 27.09.2013

(51) International Patent Classification (IPC):  C14B 1/58(2006.01) F26B 25/00(2006.01) F26B 15/14(2006.01) (86) International application number: PCT/IB2013/058948 (87) International publication number: WO 2014/053978 (10.04.2014 Gazette 2014/15)

(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 (30) Priority: 05.10.2012 IT PD20120290 (71) Applicant: Erretre S.p.A. 36071 Arzignano (Vicenza) (IT)	(72) Inventor: GALIOTTO, Antonio I-36072 Chiampo (VI) (IT) (74) Representative: Contadin, Giorgio et al Praxi Intellectual Property S.p.A. Via N. Tommaseo, 76/D 35131 Padova 35131 Padova (IT)