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EP 3 554 732 A1

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(43) Date of publication: 23.10.2019 Bulletin 2019/43 (21) Application number: 17883511.2 (22) Date of filing: 12.12.2017

(51) International Patent Classification (IPC):  B21D 22/26(2006.01) B21D 22/22(2006.01) B21D 22/28(2006.01) B21D 22/20(2006.01) B21D 22/24(2006.01) B21D 22/30(2006.01) (86) International application number: PCT/US2017/065671 (87) International publication number: WO 2018/118495 (28.06.2018 Gazette 2018/26)

(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 TN (30) Priority: 19.12.2016 US 201615382850 (71) Applicant: Stolle Machinery Company, LLC Centennial, Colorado 80112 (US)	(72) Inventors: CARSTENS, Aaron E. Centerville, Ohio 45458 (US) MCCARTY, Patrick K. Dayton, Ohio 45420 (US) MCCLUNG, James A. Canton, Ohio 44721 (US) RIPPLE, Paul L. Canton, Ohio 44714 (US) BUTCHER, Gregory H. Naples, Florida 34108 (US) (74) Representative: Mewburn Ellis LLP  City Tower 40 Basinghall Street London EC2V 5DE London EC2V 5DE (GB)