(19)

(11)

EP 2 288 761 A1

(12)

(43) Date of publication: 02.03.2011 Bulletin 2011/09 (21) Application number: 09731605.3 (22) Date of filing: 16.04.2009

(51) International Patent Classification (IPC):  E03B 7/07(2006.01) (86) International application number: PCT/EP2009/054569 (87) International publication number: WO 2009/127710 (22.10.2009 Gazette 2009/43)

(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: 17.04.2008 GB 0806976 (71) Applicants: Hines, Peter Ashtead Surrey KT21 2QH (GB) Coleman, Carl Surbiton Surrey KT6 7PG (GB)	(72) Inventors: GARDNER, Paul Surrey KT14 6EW (GB) TAPP, Brian Surrey KT19 0PW (GB) (74) Representative: Muir, Justine Claire  BioScience Patents Ltd 45 Barrier Point GB-London E16 2SB GB-London E16 2SB (GB)