(19)

(11)

EP 3 704 414 A1

(12)

(43) Date of publication: 09.09.2020 Bulletin 2020/37 (21) Application number: 18872846.3 (22) Date of filing: 01.11.2018

(51) International Patent Classification (IPC):  F24F 3/14(2006.01) F24F 11/65(2018.01) F24F 5/00(2006.01) (86) International application number: PCT/US2018/058779 (87) International publication number: WO 2019/089980 (09.05.2019 Gazette 2019/19)

(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 Designated Validation States: KH MA MD TN (30) Priority: 01.11.2017 US 201762580270 P (71) Applicants: 7AC Technologies, Inc. Beverly, MA 01915 (US) Alliance for Sustainable Energy, LLC Golden, CO 80401 (US)	(72) Inventors: VANDERMEULEN, Peter F. Newburyport MA 01950 (US) KOZUBAL, Eric Golden CO 80401 (US) ALLEN, Mark A. Essex MA 01929 (US) WOODS, Jason David Golden CO 80401 (US) ROWE, Scott N. Dover NH 03820 (US) (74) Representative: Ahmad, Sheikh Shakeel et al Keltie LLP No.1 London Bridge London SE1 9BA London SE1 9BA (GB)