(19)

(11)

EP 2 624 983 A2

(12)

(88) Date of publication A3: 31.05.2012 (43) Date of publication: 14.08.2013 Bulletin 2013/33 (21) Application number: 11831746.0 (22) Date of filing: 10.10.2011

(51) International Patent Classification (IPC):  B22C 9/04(2006.01) B22C 7/02(2006.01) B22C 1/14(2006.01) B22D 23/00(2006.01) (86) International application number: PCT/US2011/055597 (87) International publication number: WO 2012/048321 (12.04.2012 Gazette 2012/15)

(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 RS SE SI SK SM TR (30) Priority: 10.10.2011 US 201113269773 08.10.2010 US 391159 P (71) Applicant: Buntrock Industries, Inc. Williamsburg VA 23185 (US)	(72) Inventor: BRANSCOMB, Thomas Portland Oregon 97213 (US) (74) Representative: Harris, Oliver John Richard  Novagraaf UK 12 Meridian Way Meridian Business Park Norwich NR7 0TA Norwich NR7 0TA (GB)