Electricity: battery or capacitor charging or discharging – Cell or battery charger structure
Reexamination Certificate
1999-10-01
2001-03-13
Tso, Edward H. (Department: 2838)
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Reexamination Certificate
active
06201370
ABSTRACT:
FIELD OF THE INVENTION
The present invention generally relates to power sources, and in particular, to portable power supplies for use in providing portable power.
BACKGROUND
Often times, motor vehicle batteries become discharged, typically by leaving lights or other accessories on after the vehicle is turned off, by cold weather, or simply by wear as the battery ages. When a motor vehicle battery become discharged, it either has to be recharged prior to starting, or it has to be “jump-started.” Battery chargers and jumper cables are readily available on the market. These methods usually involve opening the hood of the vehicle to connect the battery charger or the jumper cables to the motor vehicle's battery. These methods also require some knowledge of the polarity of the battery and the device connected to it in order to avoid dangerous accidents, such as the battery exploding. These methods may also require the person to exit the vehicle and expose themselves to environmental elements, such as rain, snow, extreme heat, or extreme cold while charging the vehicle's battery. In addition jump-starting requires the assistance of another vehicle, and a battery charger requires an external power source.
Improvements in devices for recharging a motor vehicle battery are desirable.
SUMMARY OF THE DISCLOSURE
In one aspect of the present invention, one example embodiment involves a power source. The power source includes a battery having an input voltage electrically connected to a circuit for generating a modified output voltage and a connection device.
One preferred embodiment of the present invention includes a display illustrating a state of charge of an internal battery, displaying the state of charge during charging, and displaying the state of charge during recharging.
Another preferred embodiment of the present invention includes a case having a door, movable between an open and a closed position. The door arranged and configured to open a switch of the circuit.
Another preferred embodiment of the present invention wherein the input voltage is 12 volts and the output voltage is 15 volts.
The above summary of principles of the disclosure is not intended to describe each illustrated embodiment or every implementation of the present disclosure. The figures and the detailed description that follow more particularly exemplify certain preferred embodiments utilizing the principles disclosed herein.
REFERENCES:
patent: 4791347 (1988-12-01), Britton
patent: 4857820 (1989-08-01), Tompkins et al.
patent: 5637978 (1997-06-01), Kellett et al.
Reller Troy M.
Whiting John S.
Merchant & Gould P.C.
Tso Edward H.
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