(19)

(11)

EP 0 205 525 A1

(12)

(43) Date of publication: 30.12.1986 Bulletin 1986/52 (21) Application number: 86900194.0 (22) Date of filing: 11.12.1985

(51) International Patent Classification (IPC):  B01D 45/ 06( . ) B01D 45/ 18( . ) (86) International application number: PCT/GB1985/000570 (87) International publication number: WO 1986/003424 (19.06.1986 Gazette 1986/13)

(84) Designated Contracting States: AT BE CH DE FR IT LI LU NL SE (30) Priority: 12.12.1984 GB 19840031361 (71) Applicant: PARMATIC FILTER CORPORATION Wayne New Jersey 07470 (US)	(72) Inventor: MAVROS, Stratos Franklin Lakes, NJ 07417 (US) (74) Representative: Hooper, John Peter Lindesay  Fitzpatricks Europe House Box No. 88 World Trade Center East Smithfield London E1 9AA London E1 9AA (GB)