Open circuit voltage test device
First Claim
Patent Images
1. An open circuit battery voltage checking device comprising:
- a first electrical terminal intended for placement in contact with a positive terminal post on a storage battery;
a second electrical terminal intended for placement in contact with a negative terminal post on a storage battery;
means adjacent one of said first and second terminals for marking the correspondingly contacted terminal post with a distinguishing feature;
a solenoid for actuating said marking means whereby the marking means is brought into contact with the said contacted terminal post;
circuit means connected to said first and second terminals for enabling said solenoid when the open circuit voltage between said first and second terminals is within a predetermined range of values; and
manually actuatable means for energizing said solenoid when manually actuated and when said solenoid is enabled by said enabling circuit means.
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Abstract
A portable hand-held open circuit voltage tester for a storage battery that contains a facility for permanently marking the positive terminal post of the tested battery when the open circuit voltage is within a predetermined range. An enabling circuit provides an indication of the open circuit voltage level and enables the marking mechanism for activation by the operator.
12 Citations
11 Claims
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1. An open circuit battery voltage checking device comprising:
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a first electrical terminal intended for placement in contact with a positive terminal post on a storage battery; a second electrical terminal intended for placement in contact with a negative terminal post on a storage battery; means adjacent one of said first and second terminals for marking the correspondingly contacted terminal post with a distinguishing feature; a solenoid for actuating said marking means whereby the marking means is brought into contact with the said contacted terminal post; circuit means connected to said first and second terminals for enabling said solenoid when the open circuit voltage between said first and second terminals is within a predetermined range of values; and manually actuatable means for energizing said solenoid when manually actuated and when said solenoid is enabled by said enabling circuit means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification