(19)

(11)

EP 2 583 029 A1

(12)

(43) Date of publication: 24.04.2013 Bulletin 2013/17 (21) Application number: 11796278.7 (22) Date of filing: 14.06.2011

(51) International Patent Classification (IPC):  F22B 37/00(2006.01) (86) International application number: PCT/US2011/040286 (87) International publication number: WO 2011/159662 (22.12.2011 Gazette 2011/51)

(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: 15.06.2010 US 354954 P (71) Applicant: Enerco Group, Inc. Cleveland, OH 44135 (US)	(72) Inventors: MULLINS, Michael Eastlake, Ohio 44095 (US) GOVE, Scott Avon Lake, Ohio 44102 (US) (74) Representative: Patentanwälte Freischem  Salierring 47-53 50677 Köln 50677 Köln (DE)