(19)

(11)

EP 1 446 546 A1

(12)

(43) Date of publication: 18.08.2004 Bulletin 2004/34 (21) Application number: 02774798.9 (22) Date of filing: 05.11.2002

(51) International Patent Classification (IPC)7: E06B 3/46 (86) International application number: PCT/FI2002/000858 (87) International publication number: WO 2003/042482 (22.05.2003 Gazette 2003/21)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 05.11.2001 FI 20012130 (71) Applicant: Lumon Oy 45130 Kouvola (FI)	(72) Inventor: HILLIAHO, Erkki FIN-45700 Kuusankoski (FI) (74) Representative: Pursiainen, Timo Pekka  Tampereen Patenttitoimisto Oy,Hermiankatu 12 B 33720 Tampere 33720 Tampere (FI)