(19)
(11) EP 0 207 937 A1

(12)

(43) Date of publication:
14.01.1987 Bulletin 1987/03

(21) Application number: 85901107.0

(22) Date of filing: 11.02.1985
(51) International Patent Classification (IPC): 
D21D 1/ 20( . )
B03B 5/ 48( . )
D21D 5/ 02( . )
B02C 2/ 10( . )
D21D 1/ 22( . )
(86) International application number:
PCT/SE1985/000066
(87) International publication number:
WO 1985/004433 (10.10.1985 Gazette 1985/22)
(84) Designated Contracting States:
AT DE FR GB SE

(30) Priority: 03.04.1984 SE 19840001846

(71) Applicant: SUNDS DEFIBRATOR AKTIEBOLAG
S-851 94 Sundsvall (SE)

(72) Inventors:
  • DE RUVO, Alf, Romano
    S-852 33 Sundsvall (SE)
  • ERIKSSON, Erik, Helmer
    S-852 33 Sundsvall (SE)

(74) Representative: Illum, Leif-Otto 
Svenska Cellulosa Aktiebolaget SCA Kungsgatan 33
S-111 56 Stockholm
S-111 56 Stockholm (SE)

   


(54) METHOD AND APPARATUS FOR PROCESSING MATERIAL SUSPENSIONS