(19)

(11)

EP 1 853 851 A1

(12)

(43) Date of publication: 14.11.2007 Bulletin 2007/46 (21) Application number: 06720654.0 (22) Date of filing: 10.02.2006

(51) International Patent Classification (IPC):  F23Q 9/12(2006.01) (86) International application number: PCT/US2006/004893 (87) International publication number: WO 2006/086714 (17.08.2006 Gazette 2006/33)

(84) Designated Contracting States: IT (30) Priority: 11.02.2005 US 593776 P (71) Applicant: ROBERTSHAW CONTROLS COMPANY Richmond, VA 23230-3011 (US)	(72) Inventor: LYLES, Frederick, Dean Carson, CA 90746 (US) (74) Representative: Gervasi, Gemma et al Notarbartolo & Gervasi S.p.A. Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)