(19)

(11)

EP 1 872 016 A1

(12)

(43) Date of publication: 02.01.2008 Bulletin 2008/01 (21) Application number: 06726564.5 (22) Date of filing: 29.03.2006

(51) International Patent Classification (IPC):  F04F 5/24(2006.01) F04B 15/04(2006.01) (86) International application number: PCT/GB2006/001157 (87) International publication number: WO 2006/103435 (05.10.2006 Gazette 2006/40)

(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: 31.03.2005 GB 0506511 (71) Applicant: British Nuclear Fuels PLC Warrington, Cheshire WA4 4GB (GB)	(72) Inventors: Gaubert, Emmanuel Risley, Warrington WA3 6AS (GB) Hopkins, Philip Risley, Warrington WA3 6AS (GB) Banford, Anthony Risley, Warrington WA3 6AS (GB) (74) Representative: Harrison Goddard Foote  Belgrave Hall Belgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)