(19)

(11)

EP 0 267 932 A1

(12)

(43) Date of publication: 25.05.1988 Bulletin 1988/21 (21) Application number: 87903132.0 (22) Date of filing: 16.04.1987

(51) International Patent Classification (IPC):  B01F 7/ 00( . ) B01F 5/ 00( . ) (86) International application number: PCT/US1987/000882 (87) International publication number: WO 1987/006496 (05.11.1987 Gazette 1987/24)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 25.04.1986 US 19860856163 (71) Applicants: ALZNER, Bernard Lake Forest, IL 60045 (US) CSONGOR, Desider G. Manchester, MA 01944 (US)	(72) Inventors: ALZNER, Bernard Lake Forest, IL 60045 (US) CSONGOR, Desider G. Manchester, MA 01944 (US)