(19)

(11)

EP 1 313 988 A1

(12)

(43) Date of publication: 28.05.2003 Bulletin 2003/22 (21) Application number: 00923484.0 (22) Date of filing: 18.04.2000

(51) International Patent Classification (IPC)7: F25B 9/00 (86) International application number: PCT/US0010/432 (87) International publication number: WO 0107/9768 (25.10.2001 Gazette 2001/43)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (71) Applicant: Hu, Zhimin Cranston, RI 02921 (US)	(72) Inventor: Hu, Zhimin Cranston, RI 02921 (US) (74) Representative: Smyth, Gyles Darren  Marks & Clerk,57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)