(19)

(11)

EP 0 932 723 A1

(12)

(43) Date of publication: 04.08.1999 Bulletin 1999/31 (21) Application number: 97942045.0 (22) Date of filing: 19.09.1997

(51) International Patent Classification (IPC):  D21F 1/ 40( . ) D21G 1/ 00( . ) (86) International application number: PCT/FI1997/000561 (87) International publication number: WO 1998/012381 (26.03.1998 Gazette 1998/12)

(84) Designated Contracting States: AT DE ES FR GB IT SE (30) Priority: 19.09.1996 FI 19960003710 06.06.1997 FI 19970002400 (71) Applicant: Jokinen, Kai 37310 Tottijärvi (FI)	(72) Inventor: Jokinen, Kai 37310 Tottijärvi (FI) (74) Representative: Nieminen, Taisto Tapani  Patenttitoimisto T. Nieminen Oy, Kehräsaari B 33200 Tampere 33200 Tampere (FI)