(19)

(11)

EP 0 792 397 A1

(12)

(43) Date of publication: 03.09.1997 Bulletin 1997/36 (21) Application number: 95937918.0 (22) Date of filing: 16.11.1995

(51) International Patent Classification (IPC):  D21F 1/ 52( . ) D21F 1/ 48( . ) (86) International application number: PCT/FI1995/000635 (87) International publication number: WO 1996/015319 (23.05.1996 Gazette 1996/23)

(84) Designated Contracting States: AT BE DE DK FR GB IT SE (30) Priority: 16.11.1994 FI 19940005382 (71) Applicant: HIGH SPEED TECH OY LTD. 33100 Tampere (FI)	(72) Inventor: SÄILY, Kari FIN-02300 Espoo (FI) (74) Representative: Kahilainen, Hannu Juhani  Tampereen Patenttitoimisto Oy, Hermiankatu 6 33720 Tampere 33720 Tampere (FI)