Dual load tester
First Claim
1. A handheld dual load tester, comprising:
- a) a first resistive load;
b) a second resistive load;
c) a switching mechanism to direct electrical voltage to either both the first resistive load and the second resistive load or to one of the first resistive load and the second resistive load;
d) a handheld housing for containing the first resistive load, the second resistive load and the switching mechanism;
e) wherein the first resistive load and the second resistive load have approximately the same resistance values; and
, f) wherein the resistive loads may be used together or individually to test a battery, charging system, starter motor or other device.
1 Assignment
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Accused Products
Abstract
The apparatus relates to a dual load tester that is hand held and highly portable. The dual load tester includes two resistive loads, and the two resistive loads may be used in series or one of the resistive loads may be used individually to test batteries, charging systems and starter motors of different voltage and current ratings. The operator of the device may, by closing the appropriate switch, first test a 12-volt battery and then test a 24-volt battery. In a similar manner, the tester may be used to test charging systems and starter motors of different voltage and current ratings. The testing functions of the dual load tester may be automated for testing various devices. The dual load tester includes a first resistive load and a second resistive load. The resistive loads may be used together or individually to test a battery, charging system, starter motor or other device.
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Citations
24 Claims
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1. A handheld dual load tester, comprising:
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a) a first resistive load;
b) a second resistive load;
c) a switching mechanism to direct electrical voltage to either both the first resistive load and the second resistive load or to one of the first resistive load and the second resistive load;
d) a handheld housing for containing the first resistive load, the second resistive load and the switching mechanism;
e) wherein the first resistive load and the second resistive load have approximately the same resistance values; and
,f) wherein the resistive loads may be used together or individually to test a battery, charging system, starter motor or other device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for testing a device using a handheld dual load tester comprising:
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a) selecting a device from one of a battery, charging system, or starter motor;
b) connecting the device to a first resistive load and a second resistive load contained in the handheld tester wherein the first resistive load and the second resistive load have approximately the same resistance values;
c) actuating a switching mechanism on the handheld tester;
d) directing an electrical current to either;
both the first resistive load and the second resistive load, or to one of the first resistive load and the second resistive load; and
,e) measuring the voltage across the two resistive loads. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A hand held battery tester, comprising:
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a) a first resistive load;
b) a second resistive load;
c) a switching mechanism to direct electrical current to either both the first resistive load and the second resistive load or to one of the first resistive load and the second resistive load;
d) wherein the tester is handheld during use;
e) wherein the first resistive load and the second resistive load have approximately the same resistance values; and
,f) wherein the resistive loads may be used together by actuating the switching mechanism to test a 24-volt battery or individually by actuating the switching mechanism to test a 12-volt battery. - View Dependent Claims (21, 22, 23, 24)
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Specification