(19)

(11)

EP 2 207 622 A2

(12)

(88) Date of publication A3: 30.07.2009 (43) Date of publication: 21.07.2010 Bulletin 2010/29 (21) Application number: 08846476.3 (22) Date of filing: 06.11.2008

(51) International Patent Classification (IPC):  B02C 23/04(2006.01) B02C 19/00(2006.01) B02C 18/00(2006.01) (86) International application number: PCT/GB2008/003730 (87) International publication number: WO 2009/060187 (14.05.2009 Gazette 2009/20)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 06.11.2007 GB 0721792 (71) Applicant: Ddc Dolphin Limited Dorset BH12 4NU (GB)	(72) Inventors: PRIEST, Martin, Douglas Poole BH15 2DP (GB) NEEDHAM, John, William Bournemouth BH9 2PZ (GB) SEWELL, David, John, Moredown Bournemouth BH9 3DH (GB) MCTAGGART, Andrew Wimborne Dorset BH21 7RU (GB) POCHIN, Gregory, James Bournemouth BH10 GDA (GB) (74) Representative: Walker, Neville Daniel Alan  ipconsult 21A Commercial Road Swanage Dorset BH19 1DF Swanage Dorset BH19 1DF (GB)