(19)

(11)

EP 0 902 872 A1

(12)

(43) Date of publication: 24.03.1999 Bulletin 1999/12 (21) Application number: 97924121.0 (22) Date of filing: 29.05.1997

(51) International Patent Classification (IPC):  F28F 1/ 40( . ) F28F 13/ 12( . ) F28D 7/ 10( . ) F28F 27/ 00( . ) (86) International application number: PCT/GB1997/001453 (87) International publication number: WO 1997/046846 (11.12.1997 Gazette 1998/01)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 05.06.1996 GB 19960011704 (71) Applicant: IATROS LIMITED Edinburgh EH1 2EN Scotland (GB)	(72) Inventors: MOWAT, David, McIvor Edinburgh EH4 3JA (GB) CAMERON, Ian, David Dundee DD4 7EH (GB) GUNN, Andrew Letham, Angus DD8 2QF (GB) (74) Representative: Szczuka, Jan Tymoteusz, et al  Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE Scotland Glasgow G1 3AE Scotland (GB)