(19)

(11)

EP 0 211 904 A1

(12)

(43) Date of publication: 04.03.1987 Bulletin 1987/10 (21) Application number: 86901297.0 (22) Date of filing: 12.02.1986

(51) International Patent Classification (IPC):  B01F 3/ 04( . ) B67D 1/ 04( . ) (86) International application number: PCT/AU1986/000032 (87) International publication number: WO 1986/004785 (28.08.1986 Gazette 1986/19)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 13.02.1985 NZ 20080002111 03.02.1986 AU 19860004410 (71) Applicants: MICALLEF, Paul Alfred Auckland, (NZ) MORRISON, T. S. Milsons Point Sydney, NSW 2061 (AU)	(72) Inventors: MICALLEF, Paul Alfred Auckland, (NZ) MORRISON, T. S. Milsons Point Sydney, NSW 2061 (AU)