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(11)

EP 3 302 845 A1

(12)

(43) Date of publication: 11.04.2018 Bulletin 2018/15 (21) Application number: 16800444.8 (22) Date of filing: 07.04.2016

(51) International Patent Classification (IPC):  B21D 22/21(2006.01) B21D 51/26(2006.01) B21D 22/24(2006.01) (86) International application number: PCT/US2016/026312 (87) International publication number: WO 2016/190969 (01.12.2016 Gazette 2016/48)

(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 Designated Validation States: MA MD (30) Priority: 27.05.2015 US 201514722187 (71) Applicant: Stolle Machinery Company, LLC Centennial, Colorado 80112 (US)	(72) Inventors: CARSTENS, Aaron E. Centerville, Ohio 45458 (US) MCCLUNG, James A. Canton, Ohio 44721 (US) RIPPLE, Paul L. Canton, Ohio 44714 (US) BUTCHER, Gregory H. Columbus, Ohio 43215 (US) MCCARTY, Patrick K. Dayton, Ohio 45420 (US) (74) Representative: Parry, Simon James et al Mewburn Ellis LLP City Tower 40 Basinghall Street London EC2V 5DE London EC2V 5DE (GB)