Electricity: battery or capacitor charging or discharging – Wind – solar – thermal – or fuel-cell source
Reexamination Certificate
2005-12-13
2009-11-24
Tso, Edward (Department: 2858)
Electricity: battery or capacitor charging or discharging
Wind, solar, thermal, or fuel-cell source
C320S138000, C320S139000, C136S291000, C323S906000
Reexamination Certificate
active
07622888
ABSTRACT:
A self-contained regenerative power system includes a fuel cell operative to generate electric energy from hydrogen and oxygen, generating water as a byproduct, and an electrolyzer operative to generate hydrogen and oxygen from water by consumption of electric energy. A bi-directional DC-to-DC converter interfaces between the fuel cell and the electrolyzer on one side and the system to be powered on the other. A switch selectively connects either the fuel cell or the electrolyzer with the bi-directional DC-to-DC converter. The products of the fuel cell process can be supplied to the electrolyzer process, and vice versa. Alternately, the self-contained regenerative power system comprises a unitary fuel cell and electrolyzer.
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patent: 2003/0072977 (2003-04-01), Speranza et al.
patent: 2004/0018399 (2004-01-01), Jung
patent: 2005/0008904 (2005-01-01), Suppes
Chung, Henry S.H. et al., “Development of a Switched-Capacitor DC-DC Converter with Bidirectional Power Flow,” 47IEEE Transactions on Circuits and Systems-I: Fund. Theory and Apps. 1383 (2000).
Dame Mark
Gjini Orges
Krok Michael
Fantu Yalkew
Lockheed Martin Corporation
Scully , Scott, Murphy & Presser, P.C.
Tso Edward
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