(19)

(11)

EP 0 670 933 A1

(12)

(43) Date of publication: 13.09.1995 Bulletin 1995/37 (21) Application number: 94900829.0 (22) Date of filing: 24.11.1993

(51) International Patent Classification (IPC):  E04C 3/ 38( . ) E01D 4/ 00( . ) E04C 3/ 44( . ) E01D 1/ 00( . ) E01D 21/ 00( . ) E01D 101/ 26( . ) (86) International application number: PCT/FI1993/000497 (87) International publication number: WO 1994/012728 (09.06.1994 Gazette 1994/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI SE (30) Priority: 25.11.1992 FI 19920005357 (71) Applicant: RUUSUNEN, Jari FIN-27230 Lappi TL (FI)	(72) Inventor: RUUSUNEN, Jari FIN-27230 Lappi TL (FI) (74) Representative: Hansmann, Dierk, Dipl.-Ing.  Patentanwälte Hansmann-Klickow-Hansmann Jessenstrasse 4 D-22767 Hamburg D-22767 Hamburg (DE)