(19)

(11)

EP 1 179 164 A1

(12)

(43) Date of publication: 13.02.2002 Bulletin 2002/07 (21) Application number: 00927452.3 (22) Date of filing: 08.05.2000

(51) International Patent Classification (IPC)7: F25B 33/00, F25B 15/06 (86) International application number: PCT/GB0001/621 (87) International publication number: WO 0068/622 (16.11.2000 Gazette 2000/46)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 11.05.1999 GB 9910758 (71) Applicant: Lattice Intellectual Property Limited London SW1Y 4UR (GB)	(72) Inventors: Tucker, Robert James Warwickshire CV37 6PQ (GB) Clark, David Anthony Coalville,Leicestershire LE67 2BU (GB) Sadler, Jeffrey David Hinckley,Leicestershire LE10 2EG (GB) Lua, Aik Beng Shepshed,Leicestershire LE12 9TQ (GB) (74) Representative: Illingworth-Law, William  Lattice Intellectual Property Ltd 23 Buckingham Gate London SW1E 6LB London SW1E 6LB (GB)