(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