Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8049362 | Vehicle inverter A method and system of inverting DC energy stored within a vehicle to AC energy sufficient for supplying appliances or other devices that traditionally receive AC energy from a wall outlet. The inverting may be executed without feedback control in that switching ope... | 11/01/2011 |
| 8004113 | Methods and apparatuses for operating devices with solar power Solar power tracking techniques are described herein. In one aspect of the invention, a solar power tracking apparatus includes, but is not limited to, a voltage converter and a controller coupled to the voltage converter. The voltage converter includes an input cap... | 08/23/2011 |
| 7932634 | Fuel cell hybrid power supply A hybrid power supply includes a switching type DC/DC boost type converter that receives energy from a fuel cell and is arranged to deliver the energy to a rechargeable cell, set to provide a fixed output voltage that is less than the full charge voltage of the rech... | 04/26/2011 |
| 7915760 | Electric power conservation system for storing electric power for use during off-peak hours An electric power conservation system to be used between an AC utility power source and a load circuit in a home or business. The electric power conservation system comprises an energy charger component, a DC rechargeable energy source, an inverter unit, a bypass is... | 03/29/2011 |
| 7880331 | Management of an electric power generation and storage system In one technique of the present invention, DC electric power from a DC bus is inverted to provide AC electricity to one or more electrical loads, and AC power from a variable speed generator is rectified to provide a first variable amount of electric power to the DC... | 02/01/2011 |
| 7855471 | Power supply device and image forming apparatus A voltage converting unit converts a first voltage of an auxiliary power supply unit into a second voltage. A voltage determining unit determines whether the second voltage exceeds a predetermined threshold. A first switch, which is arranged between the voltage conv... | 12/21/2010 |
| 7839018 | Method and system of hybrid power management A method of hybrid power management is provided in the present invention, comprising steps of: providing a hybrid power output device being coupled to a load and comprising a fuel cell module and a secondary cell module; determining a plurality of threshold values, ... | 11/23/2010 |
| 7834480 | Energy converter system with reactive-power-management A distributed generation system is connected to an AC power line that provides AC electrical power from a source to a load. The distributed generation system includes a DC electrical power source, a capacitor for storing DC electrical power, a converter for converti... | 11/16/2010 |
| 7808124 | Electric power storage In various embodiments, various systems and methods are provided for power storage. In one embodiment, a power storage apparatus is described that comprises a power multiplier having a multiply-connected electrical structure. A parametric reactance is included in th... | 10/05/2010 |
| 7800247 | Storage system that maximizes the utilization of renewable energy An electrical energy storage system for maximizing the utilization of renewable energy. In the system an inverter connected to at least one battery module is integrated with a grid power source and home or office electrical devices. Additionally, a renewable energy ... | 09/21/2010 |
| 7701087 | Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system The present invention provides a method, computer program product, and apparatus and control system and method for providing substantially uninterrupted power to a load. The apparatus includes a control system coupled with an electrical power storage subsystem and a... | 04/20/2010 |
| 7615887 | Method and system for operating a power converter A method and system for operating a power converter having an electrical component and a switch coupled to a voltage source are provided. A signal is received that is representative of a desired current flow through the electrical component. A signal is generated th... | 11/10/2009 |
| 7535119 | Power control apparatus of a complex terminal A power control apparatus of a complex terminal is disclosed that includes a DC/DC converter for outputting an auxiliary power supplied from an auxiliary battery after adjusting a level of voltage of the auxiliary power to a required input voltage level of the compl... | 05/19/2009 |
| 7528502 | System and method for efficient power utilization and extension of battery life A circuit which extends the operational life of a main energy source coupled to a load, said circuit comprising a power generator having a heat source and a cooler thermally coupled to a thermoelectric generator (TEG) for converting thermal energy into electrical en... | 05/05/2009 |
| 7405952 | Power supply device A power supply device has first and second terminals, a transformer, a switching element and an auxiliary power supply element. The first and second terminals receive input power having an input voltage. The transformer has a primary winding and a secondary winding.... | 07/29/2008 |
| 7400066 | Apparatus and methods for UPS bypass monitoring and control Status of a bypass source of parallel-connected UPSs is determined from a load share when a loading of the parallel-connected UPSs meets a predetermined criterion. Status of a bypass source of the parallel-connected UPSs is determined from a bypass source voltage wh... | 07/15/2008 |
| 7372397 | Energy storage in a radar level gauge A radar level gauge using microwaves for measuring a level of a surface of a product in a container, comprising a microwave unit, processing circuitry connected to said microwave unit, an interface for connecting said radar level gauge externally thereof, and a powe... | 05/13/2008 |
| 7366019 | Nonvolatile memory There is provided a non-volatile memory capable of being supplied with two varieties of externally supplied voltages, stabilizing the operation thereof, at a voltage in the vicinity of a threshold voltage for switching over between the externally supplied voltages, ... | 04/29/2008 |
| 7362601 | Power supply device A power supply device includes two input ports, two output ports, a transformer having primary and secondary windings, a switch device, and a controller. The switch device includes a switching element connected in series with the primary winding, and a capacitor. Th... | 04/22/2008 |
| 7358620 | Methods and apparatus for ride-through operation of a complementary device to a transient power source In accordance with certain exemplary embodiments, the present technique provides methods and apparatus for providing operating power to a complementary device to an induction device based uninterruptible power source (UPS) via a direct current (dc) bus. In one embod... | 04/15/2008 |
| 7355303 | Constant voltage discharge device Circuits and methods for supplying a temporary power supply at a predetermined voltage. A circuit includes a first DC/DC voltage converter that receives an input from a power supply at a first voltage level and generates an output at a second voltage level, higher t... | 04/08/2008 |
| 7348759 | Electronic apparatus, electronic apparatus system, and operation mode switching method An electronic apparatus system of this invention includes an electronic apparatus, and a fuel cell unit which is detachable from the electronic apparatus. The fuel cell unit incorporates a DMFC that can produce electricity by chemical reaction. On the other hand, th... | 03/25/2008 |
| 7342326 | Circuit arrangement for momentarily maintaining an internal operating direct current voltage in the event of an interruption in the vehicle electrical system power supply voltage A circuit arrangement, to which the vehicle electric system supply voltage is applied and which for briefly maintaining at least one internal normal d.c. voltage in the event of failure of the vehicle electric system supply voltage, includes a reserve energy accumul... | 03/11/2008 |
| 7336004 | Topologies for using multiple energy sources for power conversions A boost converter and a buck-boost converter supply power to a load from a series connection between a first and a second power source. ... | 02/26/2008 |
| 7294940 | Power over ethernet battery backup An apparatus, system, and method for providing DC battery backup power to Power over Ethernet, (PoE) Mid Span or End Point Power Sourcing Equipment, (PSE), such that in the event of the loss of utility power the PSE device is able to continue to provide power for so... | 11/13/2007 |
| 7259476 | DC and AC uninterruptible power supply A power supply for point-of-sale (POS) devices. The power supply comprises a transformer with first through fourth windings. An AC input is connected through a backfeed relay to the first winding. An AC output is also connected to the first winding. A battery and an... | 08/21/2007 |
| 7247401 | Method and apparatus for operating a fuel cell system A fuel cell system is provided that comprises a fuel cell for powering an electrical load, an oxidant supply device for supplying oxidant to the fuel cell, an energy storage device for providing at least temporary electrical power to drive the oxidant supply device ... | 07/24/2007 |
| 7239044 | Enhanced distributed energy resource system A power transmission system including a direct current power source electrically connected to a conversion device for converting direct current into alternating current, a conversion device connected to a power distribution system through a junction, an energy stora... | 07/03/2007 |
| 7227278 | Multiple bi-directional input/output power control system A multiple bi-directional input/output power control system includes a network of functional blocks housed in a single enclosure, providing DC power to one or more DC loads, and providing control and internal pathways, sharing one or more AC and/or DC power inputs. ... | 06/05/2007 |
| 7227275 | Method for retrofitting wind turbine farms A power generation system with a predetermined rating limit includes one or more wind turbine generators and a vanadium redox battery. The vanadium redox battery absorbs excess energy to ensure that the rating limit is not exceeded, provide system stability, and imp... | 06/05/2007 |
| 7216617 | Engine starting assist system An engine starting assist system includes an auxiliary ECU having a voltage booster, an engine ECU, a starter relay, and a starter that allows the engine to be started when a current flows through the starter relay. The auxiliary ECU and the engine ECU are powered b... | 05/15/2007 |
| 7183728 | Motor drive system and process A motor drive system includes a multi-output dc power source providing three or more output potentials, and a switching circuit including switching devices connected, respectively, with the output potentials of the multi-output power source. A controller determines ... | 02/27/2007 |
| 7180200 | Starter system for portable internal combustion engine electric generators using a portable universal battery pack A generator starting system utilizes a portable universal battery pack to start an internal combustion engine of the generator. The system is adapted to utilize any one of a plurality of universal battery packs having outputs of varying voltage. The generator can in... | 02/20/2007 |
| 7177168 | Power converting apparatus and power generating apparatus AC module makers must prepare two types of AC modules for the 100-V and 200-V outputs only for domestic supply. For foreign countries, the makers must manufacture AC modules compatible with more system voltages. To solve these problems, the control circuit of an AC ... | 02/13/2007 |
| 7176656 | Tool with battery pack A handheld tool has an attached position in which the tool is removably attached to a battery pack. The battery pack has an auxiliary battery and output terminals for outputting electricity from the auxiliary battery. The tool includes a load and a primary battery. ... | 02/13/2007 |
| 7170194 | Configurable multiple power source system A system for supplying additional power to a module having an internal power supply, the system comprising: a module having an associated power supply, the power supply not being designed to accommodate power sharing; at least one load associated with the module, th... | 01/30/2007 |
| 7170196 | Power feed An electrical power feed for a submarine system and a method of supplying electrical power to the submarine system in which a plurality of power converters are used for feeding electrical power into the submarine system. A plurality of control circuits are each conn... | 01/30/2007 |
| 7157885 | Inverter controlled generator set and method for controlling the same A method for controlling an inverter controlled generator set which comprises a DC power source section having as a power source a generator driven by an engine and an inverter which converts an output of said DC power source section into an AC output, the method co... | 01/02/2007 |
| 7151326 | System and method for safely and efficiently capturing power currently produced by already available power supplies to power electrical devices in a truck while its engine is turned off The present invention is directed to an electrical system and method for providing power to a truck's cab while the truck's engine is turned off. An already available primary power supply of the truck and a secondary power supply generally located on a trailer being... | 12/19/2006 |
| 7139680 | Apparatus and method for standby lighting A method and system for standby lighting uses a power supply module and a standby lamp in conjunction with an HID lamp. The power supply module has a processor with smart trigger circuitry, soft start capability, overlap timer, and an advanced current sense algorith... | 11/21/2006 |
