Battery warning indicator
First Claim
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1. A BATTERY WARNING INDICATOR COMPRISING;
- A BATTERY, A VOLTAGE DIVIDER NETWORK CONNECTED ACROSS TERMINALS OF SAID BATTERY, A VOLTAGE BREAKDOWN DEVICE CONNECTED AT ONE END TO ONE TERMINAL OF SAID BATTERY, A VOLTAGE SENSING RESISTOR CONNECTED TO THE OTHER END OF SAID BREAKDOWN DEVICE AND TO AN INTERMEDIATE POINT OF SAID VOLTAGE DIVIDER, A FURTHER RESISTANCE IN SHUNT ACROSS SAID OTHER END OF SAID BREAKDOWN DEVICE AND THE OTHER TERMINAL OF SAID BATTERY, A TRANSISTOR HAVING ITS BASE AND EMITTER BAISED OFF BY SAID VOLTAGE SENSING RESISTOR AT A BATTERY VOLTAGE RENDERING SAID BREAKDOWN DEVICE CONDUCTIVE AND BIASED ON AT A LOWER BATTERY VOLTAGE WHICH RENDERS THE BREAKDOWN DEVICE NON-CONDUCTIVE, INDICATOR MEANS IN CIRCUIT WITH THE COLLECTOR OF SAID TRANSISTOR AND SAID BATTERY TO INDICATE REDUCED BATTERY VOLTAGE.
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1 Claim
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1. A BATTERY WARNING INDICATOR COMPRISING;
- A BATTERY, A VOLTAGE DIVIDER NETWORK CONNECTED ACROSS TERMINALS OF SAID BATTERY, A VOLTAGE BREAKDOWN DEVICE CONNECTED AT ONE END TO ONE TERMINAL OF SAID BATTERY, A VOLTAGE SENSING RESISTOR CONNECTED TO THE OTHER END OF SAID BREAKDOWN DEVICE AND TO AN INTERMEDIATE POINT OF SAID VOLTAGE DIVIDER, A FURTHER RESISTANCE IN SHUNT ACROSS SAID OTHER END OF SAID BREAKDOWN DEVICE AND THE OTHER TERMINAL OF SAID BATTERY, A TRANSISTOR HAVING ITS BASE AND EMITTER BAISED OFF BY SAID VOLTAGE SENSING RESISTOR AT A BATTERY VOLTAGE RENDERING SAID BREAKDOWN DEVICE CONDUCTIVE AND BIASED ON AT A LOWER BATTERY VOLTAGE WHICH RENDERS THE BREAKDOWN DEVICE NON-CONDUCTIVE, INDICATOR MEANS IN CIRCUIT WITH THE COLLECTOR OF SAID TRANSISTOR AND SAID BATTERY TO INDICATE REDUCED BATTERY VOLTAGE.
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Current AssigneePeter A. Vincent
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Original AssigneePeter A. Vincent
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InventorsVincent, Peter A.
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Application NumberUS03/830,297Time in Patent Office1,630 DaysField of SearchUS Class Current340/636.15CPC Class CodesG01R 19/16542 for batteries charge condit...
