Electricity: battery or capacitor charging or discharging – Wind – solar – thermal – or fuel-cell source
Reexamination Certificate
2005-06-10
2009-08-25
Ullah, Akm E (Department: 2838)
Electricity: battery or capacitor charging or discharging
Wind, solar, thermal, or fuel-cell source
C429S010000, C429S006000
Reexamination Certificate
active
07579806
ABSTRACT:
A temperature sensor (13) and a heating device (14) are provided to prevent moisture from freezing i a direct methanol fuel cell (16). To achieve this, a secondary battery (17) is connected in parallel to the fuel cell. When the temperature drops to a predetermined level, the secondary battery, using electricity it as stored from the fuel cell, heats a ceramic device. This device is located near the fuel cell, the fuel container (15), or both. When the fuel cell again reaches the desired temperature, it begins normal operations and also recharges the secondary battery. The heating system is prevented from working if a fuel container is not installed in a battery pack or if the battery pack is not connected to an electronic device or if that electronic device is turned off.
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patent: 2003/0138676 (2003-07-01), Leban
patent: 2003/0224224 (2003-12-01), Okada et al.
patent: 2004/0219409 (2004-11-01), Isogai
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patent: 2004-081388 (2004-03-01), None
Oppedahl Patent Law Firm LLC
Ruiz Johali A Torres
Ullah Akm E
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