US 12,241,916 B2
Test device
Nicholas A. Gabbey, Mount Pleasant, WI (US)
Assigned to Snap-on Incorporated, Kenosha, WI (US)
Filed by Snap-on Incorporated, Kenosha, WI (US)
Filed on Jul. 27, 2022, as Appl. No. 17/875,371.
Prior Publication US 2024/0036085 A1, Feb. 1, 2024
Int. Cl. G01R 19/00 (2006.01)
CPC G01R 19/0084 (2013.01) 21 Claims
OG exemplary drawing
 
1. A test device comprising:
a power source having a first connection point and a second connection point;
a first voltmeter having a first input and a second input;
a second voltmeter having a third input and a fourth input;
a housing that contains and encloses the power source, the first voltmeter, and the second voltmeter;
a first port on the housing;
a second port on the housing;
a third port on the housing; and
a user interface, wherein:
the first port is operatively coupled within the housing to the first connection point of the power source and to the first input of the first voltmeter, wherein the first port is configured to be connected to a first terminal of a circuit that is outside of the housing,
the second port is operatively coupled within the housing to the second input of the first voltmeter, the third input of the second voltmeter, and the second connection point of the power source, wherein the second port is configured to be connected to a second terminal of the circuit,
the third port is operatively coupled within the housing to the fourth input of the second voltmeter, wherein the third port is configured to be connected to a third terminal of the circuit, and
the user interface is configured to show a first voltage between the first port and the second port and a second voltage between the third port and the second port.