State of charge battery monitor
First Claim
1. A monitor for monitoring the state of charge of a battery having an internal charge transfer medium comprising:
- detecting means arranged to be disposed beneath the surface of said charge transfer medium and arranged for sensing the specific gravity of a fluid medium;
enclosure means for enclosing said detecting means;
a fluid medium within said enclosure means, said fluid medium exhibiting specific gravities related to the degree of electric charge therein, said enclosure means being formed at least partly from a non-permeable electric charge transmissible material to enable said fluid medium to assume the electric charge of said charge transfer medium while substantially separating said fluid medium therefrom; and
indicating means responsive to said detecting means for indicating the specific gravity of said fluid medium and thus the state of charge of the battery.
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Accused Products
Abstract
There is disclosed a monitor for monitoring the state of charge of a battery having an internal charge transfer medium. A monitor includes detecting means arranged to be disposed beneath the surface of the charge transfer medium and arranged for sensing the specific gravity of a fluid medium, enclosure means for enclosing the detecting means, and a fluid medium within the enclosure means. The fluid medium exhibits specific gravities related to the degree of electric charge therein and the enclosure means is formed at least partly from a non-permeable electric charge transmissible material to enable the fluid medium to assume the electric charge of the charge transfer medium while substantially separating the fluid medium therefrom. The monitor further includes indicating means responsive to the detecting means for indicating the specific gravity of the fluid medium and thus the state of charge of the battery.
23 Citations
20 Claims
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1. A monitor for monitoring the state of charge of a battery having an internal charge transfer medium comprising:
- detecting means arranged to be disposed beneath the surface of said charge transfer medium and arranged for sensing the specific gravity of a fluid medium;
enclosure means for enclosing said detecting means;
a fluid medium within said enclosure means, said fluid medium exhibiting specific gravities related to the degree of electric charge therein, said enclosure means being formed at least partly from a non-permeable electric charge transmissible material to enable said fluid medium to assume the electric charge of said charge transfer medium while substantially separating said fluid medium therefrom; and
indicating means responsive to said detecting means for indicating the specific gravity of said fluid medium and thus the state of charge of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- detecting means arranged to be disposed beneath the surface of said charge transfer medium and arranged for sensing the specific gravity of a fluid medium;
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13. A monitor for monitoring the state of charge of a battery of the type having an electrolyte which maintains a substantially constant specific gravity notwithstanding variations in the state of charge of the battery, said monitor comprising:
- an enclosure within the electrolyte defining a cavity, said enclosure being at least partially formed from a substantially non-permeable charge transmissible material;
a fluid medium within said cavity, said fluid medium comprising a material which exhibits a varying specific gravity responsive to the charge therein and arranged to assume therein the charge of the battery electrolyte by the passage of charge from the electrolyte through said substantially non-permeable charge transmissable material while being substantially separated from the electrolyte;
specific gravity detecting means immersed within said fluid medium for sensing the specific gravity of said fluid medium and thus the state of charge of the battery; and
indicating means coupled to said detecting means for providing an indication of the state of charge of the battery responsive to said detecting means. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
- an enclosure within the electrolyte defining a cavity, said enclosure being at least partially formed from a substantially non-permeable charge transmissible material;
Specification