(19)

(11)

EP 0 683 688 A1

(12)

(43) Date of publication: 29.11.1995 Bulletin 1995/48 (21) Application number: 93924874.0 (22) Date of filing: 08.11.1993

(51) International Patent Classification (IPC):  B01D 46/ 52( . ) (86) International application number: PCT/SE1993/000923 (87) International publication number: WO 1994/011089 (26.05.1994 Gazette 1994/12)

(84) Designated Contracting States: DE FR GB (30) Priority: 09.11.1992 SE 19920003323 (71) Applicant: MIKROKLIMAT SWEDEN AB S-161 51 Bromma (SE)	(72) Inventors: LARSSON, Stefan S-413 15 Göteborg (SE) DAVIES, James, Artur S-441 56 Alings s (SE) (74) Representative: Olsson, Jan, et al  Bjerkéns Patentbyra KB P.O.Box 1274 S-801 37 Gävle S-801 37 Gävle (SE)