(19)

(11)

EP 1 456 616 A1

(12)

(43) Date of publication: 15.09.2004 Bulletin 2004/38 (21) Application number: 02793593.1 (22) Date of filing: 23.12.2002

(51) International Patent Classification (IPC)7: G01L 1/22, G01L 5/13, G01L 3/24 (86) International application number: PCT/NL2002/000867 (87) International publication number: WO 2003/073057 (04.09.2003 Gazette 2003/36)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 21.12.2001 NL 1019636 (71) Applicant: Idbike 5051 NN Goirle (NL)	(72) Inventors: ROOVERS, Gijsbertus, Franciscus NL-5052 BA Goirle (NL) D'HERRIPON, Bastiaan, Andreas NL-5051 NN Goirle (NL) (74) Representative: Griebling, Onno  Octrooibureau Griebling BVSportweg 10 5037 AC Tilburg 5037 AC Tilburg (NL)