(19)

(11)

EP 0 996 846 A1

(12)

(43) Date of publication: 03.05.2000 Bulletin 2000/18 (21) Application number: 98933354.7 (22) Date of filing: 16.07.1998

(51) International Patent Classification (IPC)7: F28D 7/02 (86) International application number: PCT/AU9800/552 (87) International publication number: WO 9904/210 (28.01.1999 Gazette 1999/04)

(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: 17.07.1997 AU PO808697 02.09.1997 AU PO894397 21.11.1997 AU PP048297 (71) Applicant: VOS INDUSTRIES LTD Malaga, W.A. 6090 (AU)	(72) Inventor: DUTA, Gheorghe Quinns Rocks, W.A. 6030 (AU) (74) Representative: Jackson, Peter  Barker Brettell10-12 Priests Bridge London SW15 5JE London SW15 5JE (GB)