(19)

(11)

EP 2 475 482 A1

(12)

(43) Date of publication: 18.07.2012 Bulletin 2012/29 (21) Application number: 10752332.6 (22) Date of filing: 02.09.2010

(51) International Patent Classification (IPC):  B22F 7/06(2006.01) C22C 29/08(2006.01) C22C 26/00(2006.01) (86) International application number: PCT/EP2010/062913 (87) International publication number: WO 2011/029773 (17.03.2011 Gazette 2011/11)

(84) Designated Contracting States: AL 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 SM TR (30) Priority: 11.09.2009 GB 0915971 (71) Applicants: Element Six Limited County Clare (IE) Baker Hughes Incorporated Houston, TX 77019-2118 (US)	(72) Inventors: SCOTT, Danny Eugene Houston, Texas 77019-2118 (US) EASON, Jimmy Wayne Houston, Texas 77019-2118 (US) CURRY, David Alexander Houston, Texas 77019-2118 (US) KONYASHIN, Igor Yuri 36088 Huenfeld (DE) (74) Representative: Reeve, Anna Elizabeth  Element Six Limited 3rd Floor, Building 4, Chiswick Park 566 Chiswick High Road GB-London W4 5YE GB-London W4 5YE (GB)