Electrical testing apparatus
First Claim
1. Apparatus for analyzing operation of the electrical supply system of an automobile and for starting an automobile having a discharged battery, said apparatus comprising:
- a mobile cart;
a battery mounted on said cart;
a jumper cable attached at one end thereof to one of the terminals of the battery, with means on the other end of said jumper cable for attachment to the corresponding terminal of the discharged battery in said automobile;
a relay switch, having a pair of normally open contacts, with one of its contacts connected to the other terminal of said battery on said cart;
a second jumper cable attached at one end thereof to the other contact of said relay switch with means on the other end of said second jumper cable for attachment to the other terminal of the discharged battery in said automobile;
a first circuit comprising a switch and a resistor connected in series between said other terminal of said battery and a first test probe;
a second circuit comprising a switch and the coil of said relay switch connected in series between said other terminal of said battery and ground potential;
a shunt switch connected in parallel with the switch in said second circuit; and
a second test probe connected to said second circuit between the switch and coil in said second circuit.
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Accused Products
Abstract
Apparatus for analyzing operation of the electrical supply system of an automobile and for starting an automobile having a discharged battery comprises a battery mounted on a mobile cart. A jumper cable is attached to one of the terminals of the battery. A relay switch having a pair of normally open contacts is provided, with one of the contacts connected to the other terminal of the battery. A second jumper cable is attached to the other contact of the relay switch. The jumper cables are adapted to be attached to the respective terminals of the discharged battery in the automobile being serviced. Circuit means are provided for selectively energizing the coil of the relay switch and thereby completing the connection between the second jumper cable and the battery on the cart. The circuit means also includes a first test probe connected in series with a switch to the battery, whereby the first test probe can be selectively energized for testing electrical components of the automobile being serviced as well as providing electrical energy to the ignition of such automobile. A second test probe is connected to the circuitry which energizes the coil of the relay switch, so that the second test probe is energized whenever the coil of the relay switch is energized. The second test probe can be used for testing electrical components of the automobile being serviced as well as providing electrical energy directly to the starter of such automobile.
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Citations
16 Claims
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1. Apparatus for analyzing operation of the electrical supply system of an automobile and for starting an automobile having a discharged battery, said apparatus comprising:
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a mobile cart; a battery mounted on said cart; a jumper cable attached at one end thereof to one of the terminals of the battery, with means on the other end of said jumper cable for attachment to the corresponding terminal of the discharged battery in said automobile; a relay switch, having a pair of normally open contacts, with one of its contacts connected to the other terminal of said battery on said cart; a second jumper cable attached at one end thereof to the other contact of said relay switch with means on the other end of said second jumper cable for attachment to the other terminal of the discharged battery in said automobile; a first circuit comprising a switch and a resistor connected in series between said other terminal of said battery and a first test probe; a second circuit comprising a switch and the coil of said relay switch connected in series between said other terminal of said battery and ground potential; a shunt switch connected in parallel with the switch in said second circuit; and a second test probe connected to said second circuit between the switch and coil in said second circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification