(19)
(11)
EP 0 694 097 A1
(12)
(43)
Date of publication:
31.01.1996
Bulletin 1996/05
(21)
Application number:
93910492.0
(22)
Date of filing:
05.04.1993
(51)
International Patent Classification (IPC):
B01D
29/
11
( . )
D21C
7/
14
( . )
B01D
33/
01
( . )
(86)
International application number:
PCT/SE1993/000292
(87)
International publication number:
WO 1994/023119
(
13.10.1994
Gazette 1994/23)
(84)
Designated Contracting States:
AT DE ES FR PT SE
(71)
Applicant:
KVAERNER PULPING TECHNOLOGIES AB
S-651 15 Karlstad (SE)
(72)
Inventors:
RICHTER, Johan
N-Oslo 3 (NO)
RICHTER, Ole
S-651 30 Karlstad (SE)
(74)
Representative:
Hynell, Magnus
Hynell Patenttjänst AB, Box 2236
S-683 02 Hagfors
S-683 02 Hagfors (SE)
(54)
RECIPROCAL MOVABLE SCREENS IN A VERTICALLY ELONGATED VESSEL