(19)

(11)

EP 1 800 148 A1

(12)

(43) Date of publication: 27.06.2007 Bulletin 2007/26 (21) Application number: 05784736.0 (22) Date of filing: 19.09.2005

(51) International Patent Classification (IPC):  G01S 17/95(2006.01) G01S 7/48(2006.01) G01S 17/08(2006.01) (86) International application number: PCT/GB2005/003591 (87) International publication number: WO 2006/032854 (30.03.2006 Gazette 2006/13)

(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 LV MC NL PL PT RO SE SI SK TR (30) Priority: 21.09.2004 GB 0420981 (71) Applicant: Instro Precision Limited Broadstairs Kent CT10 2YD (GB)	(72) Inventors: MORCOM, Christopher J., Instro Precision Ltd. Broadstairs, Kent CT10 2YD (GB) AVERY, Richard K. Sandwich, Kent CT13 9BL (GB) (74) Representative: Ertl, Nicholas Justin  Elkington and Fife LLP Prospect House 8 Permbroke Road GB-Sevenoaks, Kent TN13 1XR GB-Sevenoaks, Kent TN13 1XR (GB)