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(11)

EP 2 283 381 A1

(12)

(43) Date of publication: 16.02.2011 Bulletin 2011/07 (21) Application number: 09742345.3 (22) Date of filing: 06.05.2009

(51) International Patent Classification (IPC):  G01S 13/10(2006.01) G01S 15/10(2006.01) G01S 13/36(2006.01) G01S 15/36(2006.01) (86) International application number: PCT/GB2009/001120 (87) International publication number: WO 2009/136149 (12.11.2009 Gazette 2009/46)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 06.05.2008 GB 0808189 (71) Applicant: Rudd, Wayne Newcastle Upon Tyne NE20 9TT (GB)	(72) Inventors: RUDD, Wayne Newcastle Upon Tyne NE20 9TT (GB) LINNETT, Laurie Gateshead Tyne & Wear NE11 0AF (GB) (74) Representative: Docherty, Andrew John et al Marks & Clerk LLP Aurora 120 Bothwell Street Glasgow G2 7JS Glasgow G2 7JS (GB)