(19)
(11) EP 0 271 502 A1

(12)

(43) Date of publication:
22.06.1988 Bulletin 1988/25

(21) Application number: 87902533.0

(22) Date of filing: 05.05.1987
(51) International Patent Classification (IPC): 
D21B 1/ 14( . )
D21D 1/ 30( . )
(86) International application number:
PCT/FI1987/000060
(87) International publication number:
WO 1987/006963 (19.11.1987 Gazette 1987/25)
(84) Designated Contracting States:
AT BE DE FR GB NL SE

(30) Priority: 13.05.1986 FI 19860001986

(71) Applicant: SUNDS DEFIBRATOR JYLHÄ OY
SF-37601 Valkeakoski (FI)

(72) Inventors:
  • VILJAKAINEN, Esa
    SF-37600 Valkeakoski (FI)
  • BLOMSTER, Kari
    SF-02320 Espoo (FI)

(74) Representative: Roth, Ernst Adolf Michael, et al 
GÖTEBORGS PATENTBYRA AB Box 5005
S-402 21 Göteborg
S-402 21 Göteborg (SE)

   


(54) GRINDING BLOCK FOR A REFINER