(19)

(11)

EP 0 069 734 A1

(12)

(43) Date of publication: 19.01.1983 Bulletin 1983/03 (21) Application number: 81901589.0 (22) Date of filing: 19.01.1981

(51) International Patent Classification (IPC):  B01D 35/ 143( . ) (86) International application number: PCT/US1981/000080 (87) International publication number: WO 1982/002497 (05.08.1982 Gazette 1982/19)

(84) Designated Contracting States: FR (71) Applicant: MANDERS, Logan J. Delmar, DE 19940 (US)	(72) Inventor: MANDERS, Logan J. Delmar, DE 19940 (US)