Battery acid level alarm
First Claim
1. An apparatus for detecting a reduction of a level of electrolyte in a wet cell battery comprising:
- an electrically conductive sensing rod adapted to be disposed within a cell of a battery in contact with an electrolyte in the cell;
a voltage comparator means having an input connected to said rod and having output, said voltage comparator means generating a first output signal when a voltage at said input is greater than a reference voltage and generating a second output signal when a voltage at said input is less than the reference voltage; and
an indicator means being responsive to said first output signal for generating a first visual signal and being responsive to said second output signal for generating a second visual signal whereby when said rod is immersed in the electrolyte, said first visual signal is generated and when said rod is not immersed in the electrolyte, said second visual signal is generated.
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Accused Products
Abstract
An apparatus for detecting a reduction of a level of electrolyte in a wet cell battery includes an electrically conductive sensing rod in contact with an electrolyte in a battery cell, a voltage comparator connected to the rod for generating a first output signal when an input voltage is greater than a reference voltage and generating a second output signal when an input voltage is less than the reference voltage, and an indicator responsive to the output signals for generating a green visual signal when the rod is immersed in the electrolyte and generating a red visual signal when the rod is not immersed in the electrolyte. The apparatus also include an audio alarm device sounding an audio indication when the red visual signal is generated. A sensing circuit can be connected between the voltage comparator and a pair of battery voltage input terminals to selectively connect the terminals to the comparator when a voltage of a battery connected to the terminals exceeds a predetermined voltage level.
1 Citation
20 Claims
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1. An apparatus for detecting a reduction of a level of electrolyte in a wet cell battery comprising:
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an electrically conductive sensing rod adapted to be disposed within a cell of a battery in contact with an electrolyte in the cell;
a voltage comparator means having an input connected to said rod and having output, said voltage comparator means generating a first output signal when a voltage at said input is greater than a reference voltage and generating a second output signal when a voltage at said input is less than the reference voltage; and
an indicator means being responsive to said first output signal for generating a first visual signal and being responsive to said second output signal for generating a second visual signal whereby when said rod is immersed in the electrolyte, said first visual signal is generated and when said rod is not immersed in the electrolyte, said second visual signal is generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 17, 18, 19, 20)
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13. An apparatus for detecting a reduction of a level of electrolyte in a wet cell battery comprising:
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an electrically conductive sensing rod adapted to be disposed within a cell of a battery in contact with an electrolyte in the cell;
a voltage comparator means having an input connected to said rod and having output, said voltage comparator means generating a first output signal when a voltage at said input is greater than a reference voltage and generating a second output signal when a voltage at said input is less than the reference voltage;
an indicator means being responsive to said first output signal for generating a green color visual signal and being responsive to said second output signal for generating a red color visual signal; and
an audio alarm device connected to said output of said voltage comparator means and being responsive to said second output signal for generating an audio indication whereby when said rod is immersed in the electrolyte, said first visual signal is generated and when said rod is not immersed in the electrolyte, said second visual signal and said audio indication are generated.
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15. An apparatus for detecting a reduction of a level of electrolyte in a wet cell battery comprising:
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an electrically conductive sensing rod adapted to be disposed within a cell of a battery in contact with an electrolyte in the cell;
a voltage comparator means having an input connected to said rod and having output, said voltage comparator means generating a first output signal when a voltage at said input is greater than a reference voltage and generating a second output signal when a voltage at said input is less than the reference voltage;
an indicator means being responsive to said first output signal for generating a first visual signal and being responsive to said second output signal for generating a second visual signal whereby when said rod is immersed in the electrolyte, said first visual signal is generated and when said rod is not immersed in the electrolyte, said second visual signal is generated;
a generally cup-shaped circuit housing enclosing said voltage comparator means and said indicator means and having an open end;
a cap shell attached to said circuit housing and adapted to be mounted in an opening of the cell; and
a cover closing said open end of said circuit housing, said indicator means extending through said cover.
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Specification