(19)

(11)

EP 2 324 303 A2

(12)

(88) Date of publication A3: 22.04.2010 (43) Date of publication: 25.05.2011 Bulletin 2011/21 (21) Application number: 09798671.5 (22) Date of filing: 14.07.2009

(51) International Patent Classification (IPC):  F24J 2/54(2006.01) (86) International application number: PCT/US2009/050576 (87) International publication number: WO 2010/009154 (21.01.2010 Gazette 2010/03)

(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 MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 14.07.2008 US 80554 P 13.07.2009 US 502085 (71) Applicant: Zettasun, Inc. Boulder, CO 80301 (US)	(72) Inventors: CAMPBELL, Robert, O. Boulder CO 80303 (US) MACHADO, Michael, G. Boulder CO 80303 (US) (74) Representative: Richards, John et al Ladas & Parry LLP Dachauerstrasse 37 80335 München 80335 München (DE)