(19)

(11)

EP 2 307 803 A2

(12)

(88) Date of publication A3: 24.06.2010 (43) Date of publication: 13.04.2011 Bulletin 2011/15 (21) Application number: 09746299.8 (22) Date of filing: 11.05.2009

(51) International Patent Classification (IPC):  F23G 5/027(2006.01) F23G 5/08(2006.01) (86) International application number: PCT/IT2009/000208 (87) International publication number: WO 2009/139017 (19.11.2009 Gazette 2009/47)

(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: 14.05.2008 IT BO20080292 (71) Applicant: Leon Engineering S.p.a. 47891 Dogana (R.S.M.) (SM)	(72) Inventor: AMADESI, Paolo I-40134 Bologna (BO) (IT) (74) Representative: Provvisionato, Paolo  Provvisionato & Co S.r.l. Piazza di Porta Mascarella 7 40126 Bologna 40126 Bologna (IT)