(19)

(11)

EP 2 869 949 A1

(12)

(43) Date of publication: 13.05.2015 Bulletin 2015/20 (21) Application number: 13813064.6 (22) Date of filing: 03.07.2013

(51) International Patent Classification (IPC):  B21F 15/06(2006.01) C21D 9/52(2006.01) C21D 1/18(2006.01) (86) International application number: PCT/US2013/049209 (87) International publication number: WO 2014/008335 (09.01.2014 Gazette 2014/02)

(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 Designated Extension States: BA ME (30) Priority: 03.07.2012 US 201261667465 P 02.07.2013 US 201313933893 (71) Applicant: Erico International Corporation Solon, OH 44139 (US)	(72) Inventors: STEWART, Robert C. Northfield, Ohio 44067 (US) MOST, Tobin Reminderville, Ohio 44202 (US) (74) Representative: Gille Hrabal  Brucknerstrasse 20 40593 Düsseldorf 40593 Düsseldorf (DE)