(19)

(11)

EP 1 861 661 A2

(12)

(43) Date of publication: 05.12.2007 Bulletin 2007/49 (21) Application number: 06737549.3 (22) Date of filing: 09.03.2006

(51) International Patent Classification (IPC):  F24J 2/46(2006.01) F24J 2/24(2006.01) (86) International application number: PCT/US2006/008387 (87) International publication number: WO 2006/099028 (21.09.2006 Gazette 2006/38)

(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 NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK YU (30) Priority: 09.03.2005 US 76177 (71) Applicant: Dawn Solar Systems, Inc. Brentwood, NH 03833 (US)	(72) Inventor: LEIGHTON, Steven, S. Sandown, NH 03873 (US) (74) Representative: Booth, Catherine Louise  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)