(19)

(11)

EP 1 937 968 A2

(12)

(88) Date of publication A3: 07.06.2007 (43) Date of publication: 02.07.2008 Bulletin 2008/27 (21) Application number: 06794555.0 (22) Date of filing: 22.09.2006

(51) International Patent Classification (IPC):  F03D 11/04(2006.01) F03B 13/26(2006.01) F03D 5/06(2006.01) (86) International application number: PCT/GB2006/003518 (87) International publication number: WO 2007/034193 (29.03.2007 Gazette 2007/13)

(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: 22.09.2005 GB 0519354 02.05.2006 GB 0608548 (71) Applicant: NICHOLSON, Kit Cumbria LA6 2LX (GB)	(72) Inventors: NICHOLSON, Hamish Cumbria CA8 9JJ (GB) RICKETTS, Marc Portland, OR 97202 (US) (74) Representative: Suèr, Steven Johannes et al Ablett & Stebbing, Caparo House, 101-103 Baker Street London W1U 6FQ London W1U 6FQ (GB)