(19)

(11)

EP 1 704 285 A1

(12)

(43) Date of publication: 27.09.2006 Bulletin 2006/39 (21) Application number: 03785481.7 (22) Date of filing: 23.12.2003

(51) International Patent Classification (IPC):  E02B 3/10(2006.01) (86) International application number: PCT/CZ2003/000077 (87) International publication number: WO 2005/061801 (07.07.2005 Gazette 2005/27)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (71) Applicant: SDP-Kovo, S.R.O. 31800 Pilzen (CZ)	(72) Inventors: SIML, Jan 318 00 Plzen (CZ) ANDRYSEK, Petr 301 00 Plzen (CZ) (74) Representative: Langrova, Irena  Skretova 48 301 00 Plzen 301 00 Plzen (CZ)