Fuel cell-secondary cell combination
Patent 4000003 Issued on December 28, 1976. Estimated Expiration Date: 
December 28, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 28, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3338746 3410729 3649360 InventorsAssigneeApplicationNo. 646214 filed on 01/02/1976US Classes:429/7, WITH NONBATTERY ELECTRICAL COMPONENT ELECTRICALLY CONNECTED WITHIN CELL CASING OTHER THAN TESTING OR INDICATING COMPONENTS429/12, FUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATING429/9HAVING DIVERSE CELLS OR DIVERSE REMOVABLE CELLS IN A SUPPORT MEANSExaminersPrimary: Mack, John H.Assistant: Feeley, H. A. Attorney, Agent or FirmAbstractA hybrid fuel cell secondary battery system suitable for low power sensor plications is provided. The system comprises in combination, a fuel cell, a fully contained fuel and oxidant source for the fuel cell, a DC to DC power processor for boosting the voltage output from the fuel cell, and a nickel-cadmium battery in parallel with the output from the DC to DC processor to sustain peak power drains. |
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