(19)

(11)

EP 0 876 185 A1

(12)

(43) Date of publication: 11.11.1998 Bulletin 1998/46 (21) Application number: 96939751.0 (22) Date of filing: 28.11.1996

(51) International Patent Classification (IPC):  F02M 37/ 22( . ) B01D 29/ 01( . ) B01D 35/ 30( . ) B01D 27/ 08( . ) B01D 35/ 02( . ) (86) International application number: PCT/AU1996/000762 (87) International publication number: WO 1997/019737 (05.06.1997 Gazette 1997/24)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.11.1995 AU 1995PN06816 07.05.1996 AU 1996PN09731 (71) Applicant: Filter Technology International Pty. Ltd. Nambour, QLD 4560 (AU)	(72) Inventors: LINDBERG, Paul, Charles Browns Plains, QLD 4118 (AU) MORTENSEN, Kenneth, Gordon Cedar Creek, QLD 4217 (AU) (74) Representative: Jones, Graham H.  Graham Jones & Company 77 Beaconsfield Road Blackheath London SE3 7LG London SE3 7LG (GB)