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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8138747 | Evaluation method for evaluating battery safety in the event of internal short circuit and evaluation apparatus used therefor The present invention relates to an internal short circuit evaluation method for a battery including an electrode group including a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative el... | 03/20/2012 |
| 8022689 | Battery connection detecting device and image forming apparatus including the same A battery connection detecting device includes a connecting unit, to which a battery is connected, a voltage detecting unit that detects a voltage value of the connecting unit, the voltage value detected by the voltage detecting unit being a detection voltage value,... | 09/20/2011 |
| 7312614 | Commutator for power supply testing A commutator for power supply testing includes a printed circuit board (PCB), a plurality of connectors soldered on the PCB and coupling a power supply with an electronic load, a plurality of indicator light showing whether the power supply coupled to the commutator... | 12/25/2007 |
| 7235326 | Method and device for judging the condition of secondary batteries and method for regenerating secondary batteries The reducing treatment of the negative electrode of which the battery capacity decreases slightly and the internal resistance increases slightly, does not affect the battery performance. Accordingly, by merely supplementing the electrolyte, the battery performance c... | 06/26/2007 |
| 7051432 | Method for providing an electrical connection A preferred method for electrically connecting a first and a second component includes inserting a wire pin through a through hole formed in the first component so that a first portion of the wire pin is located within the through hole and a second portion of the wi... | 05/30/2006 |
| 6691556 | Automatic data logging kit and method An automatic data logging kit is used with a hydraulic integrity test kit for testing a liquid cooled stator bar system. The automatic data logging kit includes a spool piece having end connectors attachable between the liquid cooled stator bar system and... | 02/17/2004 |
| 6657424 | DC load detection in an electric utility meter An electricity meter includes a current sensor, an analog to digital (A/D) converter coupled to the current sensor, and a processor coupled to the A/D converter. The current sensor and the A/D converter cooperate to generate a digital current signal havin... | 12/02/2003 |
| 4788493 | Apparatus for detecting direction of electric power flow An apparatus for measuring the direction of power flow through conductors connecting a load to a source of alternating electric current, the load being capable of generating electric current, and the source of alternating electric current being capable of... | 11/29/1988 |
