(19)

(11)

EP 1 703 952 A1

(12)

(43) Date of publication: 27.09.2006 Bulletin 2006/39 (21) Application number: 05701784.0 (22) Date of filing: 06.01.2005

(51) International Patent Classification (IPC):  A63C 5/04(2006.01) A63C 5/12(2006.01) A63C 5/06(2006.01) A63C 11/04(2006.01) (86) International application number: PCT/GB2005/000013 (87) International publication number: WO 2005/065790 (21.07.2005 Gazette 2005/29)

(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: 06.01.2004 GB 0400113 (71) Applicant: THE UNIVERSITY OF SHEFFIELD Sheffield S10 2TN (GB)	(72) Inventors: ROUTH, Alexander, Francis Girton, Cambridge CB3 0GL (GB) STYRING, Peter Sheffield S7 2GA (GB) (74) Representative: Lunt, Mark George Francis  Harrison Goddard Foote, Fountain Precinct Balm Green Sheffield S1 1JA Sheffield S1 1JA (GB)