(19)

(11)

EP 2 132 360 A1

(12)

(43) Date of publication: 16.12.2009 Bulletin 2009/51 (21) Application number: 08730606.4 (22) Date of filing: 25.02.2008

(51) International Patent Classification (IPC):  C23F 13/00(2006.01) (86) International application number: PCT/US2008/054839 (87) International publication number: WO 2008/118589 (02.10.2008 Gazette 2008/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR (30) Priority: 24.03.2007 WO PCT/US2007/007317 (71) Applicant: Bennett, John E. Chardon OH 44024 (US)	(72) Inventor: Bennett, John E. Chardon OH 44024 (US) (74) Representative: Quintelier, Claude et al Gevers & Vander Haeghen Intellectual Property House Holidaystraat 5 Brussels Airport Business Park 1831 Diegem 1831 Diegem (BE)