(19)

(11)

EP 0 717 826 A1

(12)

(43) Date of publication: 26.06.1996 Bulletin 1996/26 (21) Application number: 94926416.0 (22) Date of filing: 24.08.1994

(51) International Patent Classification (IPC):  F22B 31/ 04( . ) F22B 37/ 22( . ) F22B 37/ 20( . ) F22G 7/ 14( . ) (86) International application number: PCT/SE1994/000761 (87) International publication number: WO 1995/007437 (16.03.1995 Gazette 1995/12)

(84) Designated Contracting States: AT DE ES FR PT SE (30) Priority: 07.09.1993 CA 19932105602 (71) Applicant: KVAERNER PULPING TECHNOLOGIES AB S-651 15 Karlstad (SE)	(72) Inventor: NORDENBERG, Lennart S-421 68 Västra Frölunda (SE) (74) Representative: Harrison, Michael Charles, et al  ALBIHNS GmbH, Grasserstrasse 10 80339 München 80339 München (DE)