(19)

(11)

EP 0 815 330 A1

(12)

(43) Date of publication: 07.01.1998 Bulletin 1998/02 (21) Application number: 96902293.0 (22) Date of filing: 14.02.1996

(51) International Patent Classification (IPC):  E04B 5/ 12( . ) E04C 3/ 29( . ) E04B 5/ 23( . ) E04C 3/ 18( . ) E04C 3/ 292( . ) (86) International application number: PCT/FI1996/000082 (87) International publication number: WO 1996/025566 (22.08.1996 Gazette 1996/38)

(84) Designated Contracting States: AT DE FR SE (30) Priority: 14.02.1995 FI 19950000641 (71) Applicant: Wederhorn, Yrjö Kalevi 17200 Vääksy (FI)	(72) Inventor: Wederhorn, Yrjö Kalevi 17200 Vääksy (FI) (74) Representative: Nieminen, Taisto Tapani  Patenttitoimisto T. Nieminen Oy, Kehräsaari B 33200 Tampere 33200 Tampere (FI)