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(11)

EP 2 830 861 A1

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(43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13769879.1 (22) Date of filing: 28.03.2013

(51) International Patent Classification (IPC):  B29C 70/58(2006.01) B29C 70/66(2006.01) B29C 49/00(2006.01) (86) International application number: PCT/US2013/034312 (87) International publication number: WO 2013/148977 (03.10.2013 Gazette 2013/40)

(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: 28.03.2012 US 201261616988 P 28.03.2012 US 201261616985 P 28.03.2012 US 201261616948 P 03.05.2012 US 201213463682 03.05.2012 US 201213463705 03.05.2012 US 201213463700 15.03.2013 US 201313840827 (71) Applicant: Roberts, Richard W., Jr. Tecumseh, Michigan 49286 (US)

(72) Inventor: Roberts, Richard W., Jr. Tecumseh, Michigan 49286 (US) (74) Representative: Miller, James Lionel Woolverton et al Kilburn & Strode LLP 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)