(19)

(11)

EP 1 856 416 A1

(12)

(43) Date of publication: 21.11.2007 Bulletin 2007/47 (21) Application number: 06709828.5 (22) Date of filing: 21.02.2006

(51) International Patent Classification (IPC):  F04D 19/04(2006.01) F04D 27/02(2006.01) (86) International application number: PCT/GB2006/000592 (87) International publication number: WO 2006/095132 (14.09.2006 Gazette 2006/37)

(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: 07.03.2005 GB 0504553 (71) Applicant: Edwards Limited Crawley, West Sussex RH10 9LW (GB)	(72) Inventors: BAILEY, Christopher, Mark c/o BOC Edwards Shoreham By Sea, West Sussex BN43 6PB (GB) TUNNA, Clive, Marcus, Lloyd c/o BOC Edwards Crawley, West Sussex RH10 2LW (GB) (74) Representative: Booth, Andrew Steven  Edwards Limited Manor Royal Crawley West Sussex RH10 9LW Crawley West Sussex RH10 9LW (GB)