Temperature responsive battery tester
First Claim
Patent Images
1. A device for measuring the voltage of a battery, comprising:
- a temperature responsive material;
a conductive heating means for heating said temperature responsive material in response to an applied current; and
diode means for applying a current from a battery to said conductive heating means when a battery having a voltage exceeding a threshold conducting voltage of said diode means is electrically connected to said device.
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Abstract
A temperature responsive tester for measuring the voltage of a voltage source includes a temperature responsive display and an electrical element thermally coupled with the temperature responsive display for heating the temperature responsive display when a voltage exceeding a predetermined threshold level is impressed across the electrical element. Other embodiments of a voltage tester are disclosed.
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Citations
36 Claims
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1. A device for measuring the voltage of a battery, comprising:
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a temperature responsive material; a conductive heating means for heating said temperature responsive material in response to an applied current; and diode means for applying a current from a battery to said conductive heating means when a battery having a voltage exceeding a threshold conducting voltage of said diode means is electrically connected to said device. - View Dependent Claims (2, 3)
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4. A device for measuring the voltage of a voltage source, comprising:
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a temperature responsive display; and electrical means thermally coupled with said temperature responsive display for heating said temperature responsive display when a voltage exceeding a threshold conducting voltage of said electrical means is impressed across said electrical means. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device for testing a voltage source, comprising:
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a temperature responsive display; and electrical means thermally coupled with said temperature responsive material for heating said temperature responsive material when electrically coupled to a voltage source having a voltage exceeding a threshold conducting voltage of said electrical means. - View Dependent Claims (15, 16, 17)
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18. A device for testing a voltage source, comprising:
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a temperature responsive material; and a plurality of diode means thermally coupled with said temperature responsive material, each of said plurality of diode means for heating a portion of said temperature responsive material when electrically coupled to a voltage source having a voltage exceeding a threshold conducting voltage for each of said plurality of diode means. - View Dependent Claims (19, 20)
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21. A method for measuring the voltage across a device, comprising the steps of:
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sensing the voltage of such device; generating heat to produce a visual indication by conducting current through a heat generating device when the detected voltage exceeds a threshold conducting voltage of said heat generating device.
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22. A device for testing a voltage source, comprising:
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a temperature responsive material; diode means thermally coupled with said temperature responsive material for heating said temperature responsive material when electrically coupled to a battery having a voltage exceeding a threshold conducting voltage of said diode means; and
,conductive heating means electrically in parallel with said diode means for heating said temperature responsive material in response to an applied current from such battery.
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23. A circuit comprising:
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a thin dielectric film a heat generating electrical component surface mounted to said dielectric film; and
,a temperature responsive material thermally coupled with said heat generating electrical component, wherein said heat generating electrical component is activated upon application of a voltage exceeding a threshold conducting voltage of said heat generating electrical component.
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24. A device for testing a voltage source over differing ambient temperatures comprising:
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a first temperature responsive display; diode means thermally coupled to said first temperature responsive display and electrically coupled to plural conductive leads, said diode means for heating said first temperature responsive display when a voltage exceeding a threshold conducting voltage of said diode means is impressed across said diode means; and a second temperature responsive display which is responsive over ambient temperature ranges, said second temperature responsive display providing different visual indicia for different ambient temperatures to assist the user in determining at what point along said conductive leads to couple said leads to the voltage source. - View Dependent Claims (25, 26)
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27. A device for measuring the voltage of a voltage source, comprising:
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a first temperature responsive display; and first and second diode means in electrical series, said first diode means thermally coupled with said temperature responsive display for heating said temperature responsive display when a voltage exceeding a threshold conducting voltage of said first diode means is impressed across said first and second diode means;
said second diode means for protecting said first diode from damage when said impressed voltage is of wrong polarity. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification