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| Number | Title | Issue Date |
| 5121044 | Electrical energy system An electrical energy system including an electric utility having an electricity generating apparatus and distribution lines, a plurality of electric vehicles and electric power storage apparatus receiving electrical power from the electric utility and sup... | 06/09/1992 |
| 5121045 | EMI proof battery pack for night vision goggles An improved battery pack for night vision goggles is employed in the cockpit of an aircraft, where RF fields of several hundred volts/meter are present. The improved battery pack includes a shunt circuit for shunting RF signals picked up by any external l... | 06/09/1992 |
| 5119009 | Lithium battery deactivator A Lithium battery includes a switch to operatively activate the discharging circuit so that Lithium may be inactivated for safe disposal of the battery.... | 06/02/1992 |
| 5117173 | Integrated battery cycle counter A battery cycle counter comprises a rechargeable battery having supply and charger contacts, a circuit for providing an input signal when the rechargeable battery is being charged, and a counter powered by the battery and responsive to the input signal wh... | 05/26/1992 |
| 5107196 | Battery bug An automatic discharging device is provided and consists of at least one light emitting diode and at least one resistor within at least one electrical wiring discharge circuit in a housing. An alligator clip is connected to each end of the at least one el... | 04/21/1992 |
| 5099188 | Protection device for high-temperature batteries In high-temperature batteries which contain a series circuit of galvanic cells with a solid electrolyte, the solid electrolyte can be damaged without the damage being noticed when the battery is short circuited in the cold condition and a voltage reversal... | 03/24/1992 |
| 5089762 | Battery disconnect device A device for use in conjunction with a battery in a motor which is connected to an electrical load. The device includes a microprocessor which iteratively inputs the value of the battery voltage as well as the ambient temperature surrounding the battery. ... | 02/18/1992 |
| 5065083 | Microprocessor controlled electronic stimulating device having a battery management system and method therefor A device and method are disclosed for effecting battery management in a battery powered electronic stimulating device, with the stimulating device particularly illustrated being a transcutaneous nerve stimulating (TENS) device for effecting suppression of... | 11/12/1991 |
| 5015919 | Emergency lighting system provided with a fluorescent tube An emergency lighting system provided with a U-shaped fluorescent tube having power supplied by a square wave oscillator connected to a relatively small sized battery. A battery charger is employed to charge the battery when the standard AC source is conn... | 05/14/1991 |
| 5004963 | Accelerometer based power control apparatus for aircraft subsystem An accelerometer based power control apparatus for use in an aircraft subsystem (where the subsystem may be a fire extinguishing system) utilizes an independent battery source. The battery is connected to the aircraft subsystem only during the flight of t... | 04/02/1991 |
| 4931367 | Low float technology battery In a device for providing stand-by power to an electrical apparatus, such as a telephone switching system, the battery contained therein is maintained at a positive plate polarization of about 20 to 40 millivolts per cell.... | 06/05/1990 |
| 4885521 | Unique computer power system with backup power A computer power system comprises an AC-to-DC power supply for providing DC power to the computer during the presence of AC line power and a backup power supply for providing DC power from batteries directly to the DC operated components of the computer s... | 12/05/1989 |
| 4864340 | Remote control device having an energy source charged by a camera A remote control device has a transmitter provided with a transmission circuit for producing a remote control signal, a first capacitor of small capacity upon discharging to drive the transmission circuit, a second capacitor of large capacity upon dischar... | 09/05/1989 |
| 4843299 | Universal battery charging system and a method A universal battery charger and recharger for electric batteries having different charging characteristics. The battery charger includes a microprocessor receiving inputs from current, voltage and temperature sensors for controlling the battery charging p... | 06/27/1989 |
| 4783619 | Method and apparatus for maintaining auto voltage A power supply back-up device is capable of supplying auxiliary electrical power to a motor vehicle when the vehicle storage battery is disconnected. The computer memory back-up device comprises a plug for inserting into the vehicle cigar lighter, a body ... | 11/08/1988 |
| 4743831 | Apparatus and method for indicating remaining battery life in a battery powered device The remaining battery life of a battery powered device is predicted by monitoring the immediate past history of battery life and employing this immediate past history as a basis for subsequent predictions of the useful life of the battery. By this approac... | 05/10/1988 |
| 4697133 | Rechargeable battery powered toy An article having an electric motor which is powered by a battery which is capable of being recharged and which is connected and disconnected to the electric motor by movement of the battery between an operating position and a recharging position. The bat... | 09/29/1987 |
| 4680527 | Electrical battery including apparatus for current sensing An electrical battery is provided which includes a current sensing resistor situated in series with a plurality of battery cells located within a housing. The respective ends of the plurality of cells are coupled to positive and negative contacts on an ex... | 07/14/1987 |
| 4644245 | Nickel-cadmium battery state-of-charge measuring method The terminal voltage of nickel-cadmium battery is measured while the battery is placed under a heavy discharge load during a predetermined short interval.... | 02/17/1987 |
| 4626765 | Apparatus for indicating remaining battery capacity When the discharging of a battery is suspended, its open-circuit voltage or a voltage corresponding to the open-circuit voltage is detected, and with the voltage thus detected, as a start point an imaginary voltage curve having a certain decreasing rate i... | 12/02/1986 |
| 4578628 | Portable battery powered electrical apparatus with improved battery pack protected against inadvertent short circuit of the battery terminals An improved portable battery powered electrical device is disclosed which includes a battery pack having normally inactivated battery terminals so that inadvertent short circuiting thereof will not produce an undesirable high amplitude short current there... | 03/25/1986 |
| 4575669 | Battery equalizer circuit A discharge circuit reduces the state of charge of a battery to a nominal zero so that the battery can be put through one or more complete charge/discharge cycles.... | 03/11/1986 |
| 4517517 | Nickel-cadmium battery conditioner and tester apparatus A battery tester apparatus having a discharge circuit with a visual indicator that the discharge cycle is in progress operating in combination with a comparator to determine when the terminal voltage of the battery is reached. At this point the comparator... | 05/14/1985 |
| 4408151 | Electric power apparatus A coiled tubular electric battery is a conductor through its electrolyte and it may coincide with an electromagnet and a wire coil. The electromagnet is powered by the battery and caused to pulsate whereby its fluctuating magnet is equivalent to relative ... | 10/04/1983 |
| 4405891 | Control system for electric powered vehicle In a control system for an electric powered vehicle of the type including a D.C. motor drivingly connected to roadway engaging drive wheels, there is provided an improvement. A control system for this type of vehicle has a controller for operating the D.C... | 09/20/1983 |
| 4401936 | Protection system for series regulator A protection system is described for series regulators exposed to power sources such as permanent magnet alternators which may exhibit high open circuit voltages. The subject system includes a circuit which protects the control transistor in the regulator... | 08/30/1983 |
| 4347473 | Dual alternator power system for motor vehicle In an emergency vehicle having dual batteries, one of which is employed for supplying power to the electrical system of the vehicle chassis and the other of which is employed for supplying power to the emergency equipment, dual alternators driven by the e... | 08/31/1982 |
| 4336485 | Dual alternator feedback system In an emergency vehicle, a feedback system for dual alternators employed to charge two batteries and wherein one battery is employed to supply power for the vehicle chassis electrical system and the emergency equipment load is supplied with power directly... | 06/22/1982 |
| 4321114 | Electrochemical doping of conjugated polymers Conjugated polymers are doped with dopant ions to a preselected room temperature electrical conductivity ranging from that characteristic of semiconductor behavior to that characteristic of metallic behavior, by means of an electrochemical procedure where... | 03/23/1982 |
| 4290109 | Electric monitoring method and apparatus for electric system of automotive vehicle In an electric monitoring method and apparatus for a secondary battery, a computer is utilized to monitor abnormal phenomena of a terminal voltage across the battery in relation to a load current flowing from the battery to an electric load circuit.... | 09/15/1981 |
| 4287465 | Apparatus for regulating the charging of a storage battery An aleatory source of energy, e.g., a battery of photocells (1), supplies energy to a load (5) and to a storage battery (3). When the source is supplying more energy than is being drawn by the load, the storage battery is charged; when the source is suppl... | 09/01/1981 |
| 4277737 | Method of and means for utilizing rechargeable batteries in the operation of electric vehicles The engine of an automotive vehicle is powered by an assembly of electric batteries which are recharged from time to time, on standstill or during driving, from various sources including a set of solar cells on the vehicle body, braking generators driven ... | 07/07/1981 |
| 4234840 | Battery state-of-charge indicator A circuit for indicating the charge state of a battery supplying discharge current to its load circuit under actual load operation during which battery discharge current is subject to magnitude variations and interruptions, having means for storing a stor... | 11/18/1980 |
| 4228389 | Non-reversible consumer replaceable watch battery A non-reversible battery and mounting assembly for an electrically powered watch includes a battery having a casing defining a generally cylindrical configuration with an annular radially extending shoulder adjacent one end thereof for engaging an inwardl... | 10/14/1980 |
| 4101787 | Electrical power supply A power supply system includes a plurality of batteries or banks of batteries for supplying direct current to a load, a plurality of switching devices each coupling a different one of the batteries to the load and each responsive to an energizing signal f... | 07/18/1978 |
| 4085358 | Regulated DC to DC power supply with automatic recharging capability A DC to DC power supply, which includes simplified semiconductor circuitry and has features enabling the semiconductors to become non-conducting when the output is unloaded or causing battery connected to the input to charge when a higher than normal outp... | 04/18/1978 |
| 4082992 | Twin ignition and twin electrical start system for a vehicle A circuit arrangement for a vehicle or the like which permits either the vehicle battery or the battery of a camper connected to the vehicle to be selectively used for the ignition voltage of the vehicle engine or for the accessory voltage and which permi... | 04/04/1978 |
| 4080557 | Battery operated circuits and A.C. charger means Rechargeable batteries powering an electric circuit which produces a signal at an output terminal in response to an input, are connected with the output terminal through a rectifier and a capacitor so that in normal use the capacitor isolates the batterie... | 03/21/1978 |
| 3984749 | Process and arrangement for the operation of rechargeable zinc electrodes A process for the operation of rechargeable zinc electrodes in galvanic cells with the aid of a residual discharge, which comprises subjecting the rechargeable zinc electrode in a cell after a normal discharge to a residual discharge by connecting with at... | 10/05/1976 |
| 3980940 | Battery equalizing system In reference to a chargeable battery of the type which can be charged rapidly and afford big discharge current when in use, a battery equalizing system is disclosed for equally charging each component cell of the battery to avoid inverse charging and dete... | 09/14/1976 |
