(19)

(11)

EP 2 473 446 A2

(12)

(88) Date of publication A3: 16.06.2011 (43) Date of publication: 11.07.2012 Bulletin 2012/28 (21) Application number: 10805026.1 (22) Date of filing: 29.07.2010

(51) International Patent Classification (IPC):  C02F 1/02(2006.01) C02F 11/16(2006.01) C02F 11/12(2006.01) (86) International application number: PCT/US2010/043647 (87) International publication number: WO 2011/014616 (03.02.2011 Gazette 2011/05)

(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 SE SI SK SM TR (30) Priority: 29.07.2009 US 229650 P 12.02.2010 US 705462 (71) Applicant: Heartland Technology Partners Llc Kirkwood, MO 63122 (US)	(72) Inventors: DUESEL, Bernard, F., Jr. Goshen NY 10924 (US) RUTSCH, Michael, J. Tulsa OK 74133 (US) CLERKIN, Craig Stoughton WI 53589 (US) (74) Representative: Fiussello, Francesco et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)