Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7310049 | Status indicator A status indicator indicates an operating state, including an electrical malfunction, of an electrical load that is located and controlled from locations remote from a monitoring location. ... | 12/18/2007 |
| 7148657 | Apparatus and method for regulating and monitoring a chargeable device with minimal operator intervention A method and apparatus that enables the load applied to a battery to be regulated. Regulation of the load to the battery is based upon a load request from which a set-point is derived in a microprocessor. From this set-point, voltage is either allowed to pass or not... | 12/12/2006 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7064658 | Integrated vehicle power distribution and gateway system A universal vehicle electric power distribution module employs reconfigurable inputs and outputs enabling use of the same hardware across vehicle lines. The module is scalable for ease of expansion and is capable of handling both low current and high current load ma... | 06/20/2006 |
| 7034541 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/25/2006 |
| 7015822 | Battery capacity and usage system A battery capacity and usage system, applied to an electric powered boat. A battery monitor is controlled by a micro-controller which includes a non-volatile memory for storing a lookup table. The lookup table comprises a database of characteristics of various batte... | 03/21/2006 |
| 7012434 | Method for determining the amount of charge which can be drawn from a storage battery and monitoring device A method for determining the amount of charge which can be drawn from a storage battery and a monitoring device are provided that measure at least one of battery currents and battery voltages at at least two points in time before or during a rise phase and during or... | 03/14/2006 |
| 7006340 | Circuit configuration for protecting a battery against deep discharge The inventive circuit configuration has only two poles and is connected in series between the battery and the load. The circuit configuration interrupts the electric circuit for a short time in order to gauge the condition of the battery. The interruption is so shor... | 02/28/2006 |
| 6985084 | Visual indication equipment operation An electrically operated equipment with a sealed enclosure containing circuitry with an exterior visual indicator to show a state of operation of the equipment. The visual indicator is illuminated by a magnetic flux sensor also exterior to the equipment, the sensor ... | 01/10/2006 |
| 6816797 | System and method for measuring fuel cell voltage and high frequency resistance A method and apparatus are provided for measuring impedance and voltage characteristics of cells of multi-cell electrochemical devices, for example a battery or a fuel cell stack. Voltages are measured across individual cells, or groups of cells. At the same time, a... | 11/09/2004 |
| 6275161 | Method and apparatus for automotive battery condition indication The present invention concerns a system and an apparatus for monitoring the electrical condition of an automotive battery [2] in use. The main purpose of this invention is to monitor and indicate automotive battery conditions, namely liquid electrolyte le... | 08/14/2001 |
| 6215275 | Method for the automatic determination of battery chemistry in portable electronic devices A method that distinguishes different battery chemistries in portable electronic devices using a simple electrical test. The present method facilitates accurate fuel gauging as well as providing a safe in-device recharging scenario, eliminating the possib... | 04/10/2001 |
| 6150823 | Battery charge detecting variable loads Device for detecting the charge condition of a battery which measures the first output of the battery when connected to the first load and the second output of the battery when connected to the second load, and performs a predetermined computation on the ... | 11/21/2000 |
| 6133711 | Combination battery charger and battery driven power supply A charging device includes a charging circuit for performing a charging action on a secondary battery, a power supplying circuit for supplying power to a load device connected to the charging device, a mode change-over circuit for selection from between a... | 10/17/2000 |
| 6114838 | Battery capacity test method and apparatus A battery capacity tester method and apparatus are provided. The battery capacity tester determines the present internal battery impedance by measuring terminal voltages during successive applications of a known load, each load drawing a predetermined cur... | 09/05/2000 |
| 6051976 | Method and apparatus for auditing a battery test A method and apparatus for auditing condition of a storage battery performs a battery test on the storage battery to obtain a test result. Test condition information is obtained related to conditions of the battery test. The battery test result and the te... | 04/18/2000 |
| 5973603 | House/garage smoke detector A house and garage alarm system is provided including at least one detector housing with a smoke and/or carbon monoxide detector situated therein. A power source is situated within the detector housing. An alarm housing is included which is connected to t... | 10/26/1999 |
| 5966069 | Exit sign self-testing system A system for testing the electrical integrity of an illuminated exit sign alternately powered by a battery, rechargeable from a source of alternating current power. The system includes an alarm for indicating an electrical failure, precluding the illumina... | 10/12/1999 |
| 5889465 | Power service unit with automated dialer and other enhancements A power service unit suited for providing conditioned power to a consuming device at a remote location. The power service unit includes a charger/rectifier, a back-up power supply, together an automated dialer that contacts a central monitor in the event ... | 03/30/1999 |
| 5818234 | Battery tester with power limit detection In an electrical resistive-load battery testing system, apparatus and methods are disclosed for independently monitoring and reacting to both the temperature of the load and the power actually consumed by the load. The signals derived by the temperature a... | 10/06/1998 |
| 5751217 | Method and apparatus for assessing available battery life in a rechargeable battery Available battery life of a rechargeable battery is assessed and indicated to a user (300). A temporary load is switched onto a fully charged battery (304, 308) and voltage measurements are taken in both unloaded and loaded conditions (306, 310). The batt... | 05/12/1998 |
| 5726573 | Test circuit for back-up battery with protection during test mode A circuit tests a back-up battery for a power supply. A power source is coupled to a load to deliver power at a normal rated voltage during normal operation. However, during a battery test interval, the power source voltage is lowered to a test mode volta... | 03/10/1998 |
| 5710503 | On-line battery monitoring system with defective cell detection capability An on-line battery monitoring system for monitoring a plurality of battery cells identifies and computes individual cell and battery bank operating parameters. The system comprises a controller for designating a given battery cell to be monitored, a multi... | 01/20/1998 |
| 5661463 | D.C. battery plant alarm monitoring remote apparatus An automatic monitoring system of storage batteries housed at an application site which includes an A.C. power source at the site, a mechanism to interrupt the A.C. power from its source and generate an alarm, a battery plant to provide D.C. power when th... | 08/26/1997 |
| 5648717 | Battery charge gauge with current integrator and method for guaging battery charge A method for gauging battery charge in which current flowing from a battery (11) is integrated (25) and a charge counter counts charge. Voltage (Vb) across the battery is measured (16) and compared (26) with a voltage threshold (28). The counter (27) is r... | 07/15/1997 |
| 5642100 | Method and apparatus for controlling thermal runaway in a battery backup system An energy management system comprising a method and an apparatus for controlling thermal runaway in a telecommunications switching station backup battery recharging system receiving current from a power supply and delivering current through a rectifier to... | 06/24/1997 |
| 5615129 | Method and apparatus for adaptive and corrective determination of battery run-time in uninterruptible power systems The run-time available from an uninterruptible power system is accurately determined both during supply of power from the battery to the load and during the time where power is supplied directly from an AC power system to the load. During power outages, w... | 03/25/1997 |
| 5608385 | Device for determining state of electricity generation of solar battery A device for determining a state of electricity generation of a solar battery and an apparatus, such as a camera, including such a device are disclosed. The device comprises a first circuit for connecting different loads to the solar battery, and a second... | 03/04/1997 |
| 5568052 | Performance monitor for electric vehicle A system (10) and method for monitoring usage of current immediately available from the traction batteries (12) of an electric vehicle includes a means (18) for generating a signal representative of the current being drawn from the batteries (12); a means... | 10/22/1996 |
| 5365453 | System for indicating a low battery condition A system for accurately predicting impending battery failure in battery powered electronic and electrical devices. The system continually monitors changes in battery voltage responsive to load changes and calculates a ratio of the change in voltage to the... | 11/15/1994 |
| 5343138 | Battery discharging and charging A storage battery is first substantially fully discharged before it is charged. A load impedance is first connected across the battery to receive current from the battery and develop a signal representative of the state of charge of the battery. Sensing t... | 08/30/1994 |
| 5302902 | Abnormal battery cell voltage detection circuitry Defective battery cells are detected by individually monitoring the voltage utput therefrom, which characteristically becomes abnormal when the defective condition occurs. Each cell is independently referenced to a common ground by its voltage monitoring d... | 04/12/1994 |
| 5278541 | Enhanced reliability in portable rechargeable devices In a postage meter which has a meter section powered by house current in normal operation, but which requires auxiliary power source batteries while in transit, a circuit is provided which, in connection with a stored program, tests the auxiliary power so... | 01/11/1994 |
| 5268845 | Method for detecting low battery state without precise calibration A portable electronic system, which can accurately predict impending battery failure, without using expensive comparators, by using voltage and current measurements to determine the source impedance of a battery. Preferably two banks of batteries are used... | 12/07/1993 |
| 5182583 | Ink-jet having battery capacity detection An ink jet recording apparatus to which a power source is supplied from a battery and which executes the recording onto a recording sheet by using a recording head which discharges an ink from a discharge port comprises: a battery detector to detect run-d... | 01/26/1993 |
| 5170151 | Method and assembly for disconnecting a battery from its operating system A battery disconnect circuit (10) is shown for disconnecting a battery (12) from an electrical load (14). A voltage measuring circuit (32) constantly measures the voltage of the battery (12). When the voltage reaches a predetermined voltage, proportional ... | 12/08/1992 |
| 5119011 | Battery state of charge indicator A method for measuring and storing the state of charge of batteries, such as used in electric vehicles. The stored charge value is initially derived from the value of battery terminal voltage measured prior to connection of the battery to the load, e.g. t... | 06/02/1992 |
| 5107446 | Environmental detection system useful for fire detection and suppression An environmental detection system particularly useful for fire detection and suppression is provided which ensures high reliability in operation and high reliability in preventing false operation. The preferred system includes a microprocessor-based, soft... | 04/21/1992 |
| 5105180 | Combination light unit and battery monitor device A light unit is combined with circuitry which monitors the charge level of a battery of the light unit or a video camera or camcorder connected to the light unit. With two lights of different wattages, three different constant loads can be applied while o... | 04/14/1992 |
