(19)

(11)

EP 2 652 743 A1

(12)

(43) Date of publication: 23.10.2013 Bulletin 2013/43 (21) Application number: 11848649.7 (22) Date of filing: 09.11.2011

(51) International Patent Classification (IPC):  G21C 7/12(2006.01) (86) International application number: PCT/US2011/059883 (87) International publication number: WO 2012/082264 (21.06.2012 Gazette 2012/25)

(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: 14.12.2010 US 422665 P 25.10.2011 US 201113280478 (71) Applicant: Westinghouse Electric Company LLC Cranberry Township, PA 16066 (US)	(72) Inventor: MORRIS, Richard East Granby, CT 06026-9749 (US) (74) Representative: Gallo, Wolfgang  Fleuchaus & Gallo Partnerschaft Patent- und Rechtsanwälte Ludwigstrasse 26 86152 Augsburg 86152 Augsburg (DE)