(19)

(11)

EP 2 002 179 A2

(12)

(88) Date of publication A3: 03.07.2008 (43) Date of publication: 17.12.2008 Bulletin 2008/51 (21) Application number: 07759973.6 (22) Date of filing: 02.04.2007

(51) International Patent Classification (IPC):  F23C 1/10(2006.01) (86) International application number: PCT/US2007/065801 (87) International publication number: WO 2007/115267 (11.10.2007 Gazette 2007/41)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 31.03.2006 US 788297 P 26.07.2006 US 820482 P 03.10.2006 US 828031 P 29.11.2006 US 867749 P (71) Applicant: Coaltek, Inc. Tucker, GA 30084 (US)	(72) Inventors: WEINBERG, Jerry, L. Gainesville, FL 32608 (US) GINTHER, Neil, E. Jenks, OK 74037 (US) ATEN, Jed, A. Covington, GA 30016 (US) WANG, Ru, T. Gainesville, FL 32601 (US) DROZD, James, Michael Raleigh, NC 27608 (US) (74) Representative: Naismith, Robert Stewart  Marks & Clerk 19 Royal Exchange Square Glasgow G1 3AE Glasgow G1 3AE (GB)