(19)

(11)

EP 2 276 979 A2

(12)

(43) Date of publication: 26.01.2011 Bulletin 2011/04 (21) Application number: 09742474.1 (22) Date of filing: 24.03.2009

(51) International Patent Classification (IPC):  F24H 1/18(2006.01) (86) International application number: PCT/IB2009/051219 (87) International publication number: WO 2009/136301 (12.11.2009 Gazette 2009/46)

(84) Designated Contracting States: 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 SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 07.05.2008 IT PD20080138 (71) Applicant: Zilmet S.p.A. 35010 Limena (Padova) (IT)	(72) Inventor: BENETTOLO, Ugo I-35010 Limena (pd) (IT) (74) Representative: Vinci, Marcello  Ufficio Veneto Brevetti Via Sorio 116 35141 Padova 35141 Padova (IT)