(19)

(11)

EP 1 670 994 A1

(12)

(43) Date of publication: 21.06.2006 Bulletin 2006/25 (21) Application number: 04769690.1 (22) Date of filing: 05.10.2004

(51) International Patent Classification (IPC):  E02F 9/28(1968.09) (86) International application number: PCT/IB2004/003443 (87) International publication number: WO 2005/035884 (21.04.2005 Gazette 2005/16)

(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 PL PT RO SE SI SK TR (30) Priority: 09.10.2003 EP 03256377 (71) Applicant: JAN DE NUL N.V. 9308 Hofstade-Aalst (BE)	(72) Inventors: DIETENS, Walter B-2200 Herentals (BE) DE BACKER, Robby B-9031 Gent (BE) (74) Representative: Howard, Paul Nicholas et al Carpmaels & Ransford, 43-45 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)