(19)

(11)

EP 1 850 988 A2

(12)

(43) Date of publication: 07.11.2007 Bulletin 2007/45 (21) Application number: 06849676.9 (22) Date of filing: 26.01.2006

(51) International Patent Classification (IPC):  B22F 1/00(2006.01) (86) International application number: PCT/US2006/002826 (87) International publication number: WO 2007/086852 (02.08.2007 Gazette 2007/31)

(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 Designated Extension States: AL BA HR MK YU (30) Priority: 28.01.2005 US 46319 (71) Applicant: Caldera Engineering, LLC Provo, UT 84061 (US)	(72) Inventor: PETERSON, John Roger Provo, Utah 84604 (US) (74) Representative: Hanna, Peter William Derek  Hanna, Moore & Curley 13 Lower Lad Lane Dublin 2 Dublin 2 (IE)