(19)

(11)

EP 1 036 242 A1

(12)

(43) Date of publication: 20.09.2000 Bulletin 2000/38 (21) Application number: 98958273.9 (22) Date of filing: 04.12.1998

(51) International Patent Classification (IPC)7: E04C 3/12 (86) International application number: PCT/FI9800/944 (87) International publication number: WO 9929/983 (17.06.1999 Gazette 1999/24)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 05.12.1997 FI 970542 U (71) Applicant: Pelkonen, Pentti 15800 Hollola (FI)	(72) Inventor: Pelkonen, Pentti 15800 Hollola (FI) (74) Representative: Kupiainen, Juhani  c/o Oulun Patenttitoimisto, Berggren Oy Ab, Teknologiantie 14 D 90570 Oulu 90570 Oulu (FI)