DC voltage tester having parallel connected resistive elements in thermal contact with a thermochronic material
First Claim
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1. A DC voltage tester comprising a substrate;
- an electrical circuit located on one side of the substrate and comprising at least two resistive elements and a pair of electrical contacts, wherein the resistive elements and the pair of contacts are connected in a parallel configuration and thermochromic material in thermal contact with at least two of the resistive elements.
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Abstract
A DC voltage tester having a plurality of resistive elements in thermal contact with a thermochromic material wherein the resistive elements are connected in a parallel configuration.
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Citations
20 Claims
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1. A DC voltage tester comprising a substrate;
- an electrical circuit located on one side of the substrate and comprising at least two resistive elements and a pair of electrical contacts, wherein the resistive elements and the pair of contacts are connected in a parallel configuration and thermochromic material in thermal contact with at least two of the resistive elements.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A battery tester comprising a substrate;
- an electrical circuit located on one side of the substrate and comprising at least three resistive elements, a pair of electrical contacts so positioned as to be capable of alignment with the terminals of a battery, and electrical connection means for connecting the resistive elements and the pair of contacts in a parallel configuration;
a voltage scale located on the other side of the substrate in a position coincident with the position of the resistive elements; and
thermochromic material on the same side of the substrate as the voltage scale and being in thermal contact with at least three of the resistive elements. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- an electrical circuit located on one side of the substrate and comprising at least three resistive elements, a pair of electrical contacts so positioned as to be capable of alignment with the terminals of a battery, and electrical connection means for connecting the resistive elements and the pair of contacts in a parallel configuration;
Specification