(19)

(11)

EP 2 879 950 A1

(12)

(43) Date of publication: 10.06.2015 Bulletin 2015/24 (21) Application number: 13826340.5 (22) Date of filing: 02.08.2013

(51) International Patent Classification (IPC):  B64B 1/02(2006.01) F03D 9/00(2006.01) B64B 1/50(2006.01) (86) International application number: PCT/US2013/053421 (87) International publication number: WO 2014/022770 (06.02.2014 Gazette 2014/06)

(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 RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 03.08.2012 US 201213565916 (71) Applicant: Altaeros Energies Inc. Boston, MA 02210 (US)	(72) Inventor: GLASS, Benjamin, W. Somerville, MA 02143 (US) (74) Representative: Ellis, Michael James  Ellis IP Ltd Newbyth House East Linton East Lothian EH40 3DU East Lothian EH40 3DU (GB)