(19)

(11)

EP 1 446 612 A1

(12)

(43) Date of publication: 18.08.2004 Bulletin 2004/34 (21) Application number: 02803332.2 (22) Date of filing: 18.11.2002

(51) International Patent Classification (IPC)7: F23Q 2/16 (86) International application number: PCT/CN2002/000815 (87) International publication number: WO 2003/044432 (30.05.2003 Gazette 2003/22)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 19.11.2001 CN 01254775 22.01.2002 CN 02110656 18.10.2002 CN 02137527 (71) Applicant: Wong, Chi Lam San Gabriel, CA 91776 (US)	(72) Inventor: Wong, Chi Lam San Gabriel, CA 91776 (US) (74) Representative: Ebner von Eschenbach, Jennifer et al Ladas & Parry,Dachauerstrasse 37 80335 München 80335 München (DE)