(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