State of charge indicator for a battery
First Claim
1. A state of charge indicator for a battery having a liquid electrolyte comprising:
- a viewing rod having an observation surface at a first end, a conical reflection surface at a second end, and a generally cylindrical outer surface intermediate the first end and the second end, the viewing rod including a central longitudinal axis;
a ball cage coupled to the second end of the viewing rod through which the electrolyte can flow; and
at least one ball guide channel provided in the ball cage and arranged obliquely with respect to the central longitudinal axis, the ball guide channel including an upper boundary surface adjacent the conical reflection surface;
wherein the upper boundary surface is smoothly connected to the conical reflection surface.
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Accused Products
Abstract
A state of charge indicator for a battery having a liquid electrolyte includes a viewing rod having an observation surface at a first end, a conical reflection surface at a second end, and a generally cylindrical outer surface intermediate the first end and the second end. The viewing rod includes a central longitudinal axis. The state of charge indicator also includes a ball cage coupled to the second end of the viewing rod through which the electrolyte can flow and at least one ball guide channel provided in the ball cage and arranged obliquely with respect to the central longitudinal axis. The ball guide channel includes an upper boundary surface adjacent the conical reflection surface. The upper boundary surface is smoothly connected to the conical reflection surface.
102 Citations
20 Claims
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1. A state of charge indicator for a battery having a liquid electrolyte comprising:
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a viewing rod having an observation surface at a first end, a conical reflection surface at a second end, and a generally cylindrical outer surface intermediate the first end and the second end, the viewing rod including a central longitudinal axis;
a ball cage coupled to the second end of the viewing rod through which the electrolyte can flow; and
at least one ball guide channel provided in the ball cage and arranged obliquely with respect to the central longitudinal axis, the ball guide channel including an upper boundary surface adjacent the conical reflection surface;
wherein the upper boundary surface is smoothly connected to the conical reflection surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A state of charge indicator for a battery having a liquid electrolyte comprising:
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a viewing rod having a conical reflection surface;
a ball cage through which the electrolyte can flow coupled to the viewing rod;
a channel provided in the ball cage, the channel including an upper boundary surface adjacent the conical reflection surface;
wherein the upper boundary surface is generally co-linear with the conical reflection surface. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification