(19)

(11)

EP 1 738 137 A1

(12)

(43) Date of publication: 03.01.2007 Bulletin 2007/01 (21) Application number: 05738995.9 (22) Date of filing: 20.04.2005

(51) International Patent Classification (IPC):  G01B 11/06(2006.01) G01N 21/90(2006.01) (86) International application number: PCT/BE2005/000050 (87) International publication number: WO 2005/103605 (03.11.2005 Gazette 2005/44)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 22.04.2004 US 564414 P (71) Applicant: OPO sprl 4890 Thimister-Clermont (BE)	(72) Inventor: MALAISE, Daniel B-4890 THIMISTER-CLERMONT (BE) (74) Representative: pronovem  Office Van Malderen Bld. de la Sauveniére 85/043 4000 Liège 4000 Liège (BE)