(19)

(11)

EP 0 922 148 A1

(12)

(43) Date of publication: 16.06.1999 Bulletin 1999/24 (21) Application number: 97935418.0 (22) Date of filing: 27.08.1997

(51) International Patent Classification (IPC):  E01C 5/ 18( . ) (86) International application number: PCT/CZ1997/000031 (87) International publication number: WO 1998/009038 (05.03.1998 Gazette 1998/09)

(84) Designated Contracting States: AT BE CH DE DK FI FR GB GR IT LI NL SE (30) Priority: 30.08.1996 CZ 19960005699 (71) Applicant: Mais, A.S. 661 22 Brno (CZ)	(72) Inventors: SUCHANEK, Pavel 621 00 Brno (CZ) ULRYCH, Ivo 635 00 Brno (CZ) (74) Representative: Lawrence, John Gordon, et al  McNeight & Lawrence Regent House Heaton Lane Stockport, Cheshire SK4 1BS Stockport, Cheshire SK4 1BS (GB)