(19)

(11)

EP 0 105 317 A1

(12)

(43) Date of publication: 18.04.1984 Bulletin 1984/16 (21) Application number: 83901253.0 (22) Date of filing: 07.04.1983

(51) International Patent Classification (IPC):  B01D 46/ 52( . ) B04C 5/ 13( . ) B01D 50/ 00( . ) (86) International application number: PCT/SE1983/000130 (87) International publication number: WO 1983/003556 (27.10.1983 Gazette 1983/25)

(84) Designated Contracting States: AT DE FR GB SE (30) Priority: 07.04.1982 SE 19820002223 (71) Applicant: DUSTCONTROL AB S-145 63 Norsborg (SE)	(72) Inventor: HABERL, Johann S-127 41 Skärholmen (SE) (74) Representative: Ström, Tore, et al  Ström & Gulliksson AB Studentgatan 1 P.O. Box 4188 S-203 13 Malmö S-203 13 Malmö (SE)