Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8106542 | Variable power source and related power supply method A power source includes a plurality of cells, a positive output, a negative output, a number of positive switches, a number of negative switches, and a number of serializing switches. Each of the cells includes a positive electrode and a negative electrode. Each of ... | 01/31/2012 |
| 8067860 | Electrical device, in particular an electrical hand-held power tool The invention is based on an electric device, in particular an electric hand tool, having a removable power supply unit (18, 70, 104), an accommodation region (16, 102, 132, 144, 156) for accommodating the power supply unit (18, 70, 104), and a ... | 11/29/2011 |
| 8058752 | Thin-film photovoltaic power element with integrated low-profile high-efficiency DC-DC converter A photovoltaic device includes at least one photovoltaic cell and a DC/DC converter electrically coupled to the at least one photovoltaic cell. The at least one photovoltaic cell and the DC/DC converter are integrated into a photovoltaic package. ... | 11/15/2011 |
| 8030802 | Uninterruptible power supply for a medical appliance An apparatus for metered supply of a liquid medicament having a power supply which not only allows the primary battery to be replaced without interrupting the insulin supply, but also makes it possible to bridge uncontrolled short-term interruptions in the current s... | 10/04/2011 |
| 8018098 | Portable solar power supply system and its applying device A portable solar power supply system and its applying device are disclosed. The power supply system includes a receiving unit, a control block and a storage unit. After the receiving unit receives a solar power, the control block is used for storing the solar power ... | 09/13/2011 |
| 7911088 | Method and apparatus for monitoring energy storage devices An improved battery, monitoring circuit and method for communicating with the battery is provided. Such batteries and communication methods are particularly useful in UPS systems that use such batteries to provide back-up power to electrical loads. In one aspect, pe... | 03/22/2011 |
| 7808131 | Precision battery pack circuits A battery pack connection scheme is shown that provides an synchronized DC environment for every cell in the pack, such that every cell in the same or similar voltage level in the pack sees exactly the same voltage and current environment. In some embodiments, a pac... | 10/05/2010 |
| 7732948 | Portable energy device A portable energy device having a housing and an energy storage device is disclosed. The housing includes electrical input terminals and electrical output terminals, the input terminals being configured to receive electrical power from a vehicle having an electrical... | 06/08/2010 |
| 7612472 | Method and apparatus for monitoring energy storage devices An improved battery, monitoring circuit and method for communicating with the battery is provided. Such batteries and communication methods are particularly useful in UPS systems that use such batteries to provide back-up power to electrical loads. In one aspect, pe... | 11/03/2009 |
| 7573159 | Power adapters for powering and/or charging peripheral devices A power adapter for a peripheral device such as portable electronics device is disclosed. The power adapter includes a housing that contains electrical components associated with the power adapter. The power adapter also includes a data port provided at a surface of... | 08/11/2009 |
| 7518267 | Power adapter for a remote device An adapter allows a remote device to use a contactless power supply. The adapter has a contactless power interface for receiving power from a contactless power supply and a power regulator for supplying power to the remote device. The adapter may have a rechargeable... | 04/14/2009 |
| 7485990 | Electronic apparatus, feed switch controlling method and feed switch setting method for electronic apparatus The power supply controller serves to distribute electric power to each part of the electronic apparatus for operation, and the electric power can be fed from the AC power source, the fuel cell unit and the secondary battery unit. The power supply controller transmi... | 02/03/2009 |
| 7471016 | Low pass filter The present disclosure provides a method for filtering in a cordless electrical device. The method may include coupling a filter network, a microcontroller and a plurality of battery cells having a cell voltage and a current. The method may further include operative... | 12/30/2008 |
| 7439851 | Cab receptacle with indicator light An electrical indicator system and a method for operating the system includes a plug adapted to be electrically coupled to a power source remote from the vehicle and an indicator adapted to be mounted to the vehicle at a visible location. The indicator is operable t... | 10/21/2008 |
| 7439706 | Battery determination system for battery-powered devices This system provides a method for determining whether ordinary battery cells, a battery pack, and/or a charger unit are attached to a portable electronic device. The system provides a center contact in a battery shaft that contacts a battery pack or a point on an in... | 10/21/2008 |
| 7397151 | Power supply unit and portable apparatus using the same A power supply unit comprises a series regulator and a switching DC-DC converter controlled by a PWM signal and connected in parallel with the series regulator, which are switchably enabled by a mode instruction signal depending on the magnitude of a load current. I... | 07/08/2008 |
| 7397653 | Inverter design An inverter component layout and mounting bracket are disclosed which allow for electrical components, or the inverter as a whole to be replaced easily in the field. The disclosed mounting bracket and component layout also improve the heat rejection properties of th... | 07/08/2008 |
| 7388348 | Portable solar energy system The portable solar energy system stores electrical energy generated by a solar panel, which is made of an array of photovoltaic cells, in a dc storage battery, and upon demand converts the dc voltage of the battery to an ac output suitable for supplying conventional... | 06/17/2008 |
| 7385314 | Power supply having power saving mode A removably connected power supply for supplying external power to an electronic product. An output unit supplies power to the electronic product. A switching unit selects whether to supply the power to the output unit, and a switching apparatus turns on the switchi... | 06/10/2008 |
| 7385805 | Method and apparatus for delivering uninterrupted power An uninterruptible power supply that provides power to an electrical device, the uninterruptible power supply that includes a first housing; a cover plate that includes a plurality of electrical outlets located on a surface of the cover plate and said cover plate is... | 06/10/2008 |
| 7378756 | Battery backup electric plug with female plug A plug which is attached to a power cord of an appliance, such as a clock or an appliance having an internal clock, includes a battery that will supply power to the appliance during a failure of utility power whereby the clock associated with the plug need not be re... | 05/27/2008 |
| 7365514 | Battery charger A universal battery charger is described for accommodating a range of batteries. An adapter or connector is provided for each different type of battery which engages the standard housing including the main power supply. The adapter includes electronics which control... | 04/29/2008 |
| 7363522 | Apparatus and methods for information handling system with power supply device with variable output power An information handling system includes a power source configured to provide a plurality of power levels to a load. At least one of the plurality of power levels corresponds to a level obtained by de-rating a capacity of the power source from a nominal design specif... | 04/22/2008 |
| 7358706 | Power factor correction control methods and apparatus Power factor correction control methods and apparatus based on knowing in advance some information relating to anticipated load conditions (e.g., a desired power to be provided to a load). Based on “feeding-forward” known information about anticipated load condi... | 04/15/2008 |
| 7352087 | Power system configuration A power system includes an input power port, a power rail, a battery unit, and a system charger voltage regulator (VR). The system charger VR couples the input power port to the battery unit. The battery unit couples with the system charger VR and the power rail. | 04/01/2008 |
| 7338328 | Cigarette lighter adapter device that interfaces with an external device via a port interface A CLA device comprises a CLA plug that is insertable into an external CLA socket, for example, a DC CLA socket inside a vehicle. The CLA device has a housing coupled to the CLA plug, for example, by integration or via a tethered wire, with the housing having a suppo... | 03/04/2008 |
| 7332363 | Integrated battery pack with lead frame connection An integrated battery package, that contains semiconductor chips, for example to control and regulate battery charging and to monitor the package operation, uses a single lead frame to interconnect several internal chips, to internally connect said control chips to ... | 02/19/2008 |
| 7327119 | Method of extending battery life A method and system for conserving power and extending battery life in a device are provided wherein the method and system include the use of a save circuit to transfer unused energy from a capacitor back into a battery in the device. ... | 02/05/2008 |
| 7283351 | Gas discharge lamp power supply A gas discharge lamp power supply having a base, a pair of opposed side walls extending from the base, and opposed first and second end walls extending from the base between the opposed side walls. The first end wall has a sloped wall extending angularly between the... | 10/16/2007 |
| 7280347 | Universal battery pack According to one embodiment, a system is disclosed. The system includes a chassis including a printed circuit board (PCB) and a battery pack. The battery pack includes a connector to enable the battery pack to couple to a PCB which is mounted either above the center... | 10/09/2007 |
| 7258572 | Modular DC power step down adapter An apparatus for providing DC power to a portable computer operating at a source voltage and a peripheral device operating at step down voltage having a lower magnitude has an input cord for connection to an AC/DC converter that supplies the source voltage, a first ... | 08/21/2007 |
| 7256554 | LED power control methods and apparatus Methods and apparatus for providing and controlling power to loads including one or more LEDs. In one example, a controlled predetermined power is provided to a load without requiring any feedback information from the load (i.e., without monitoring a load voltage an... | 08/14/2007 |
| 7251141 | Rack and block for housing dosimeters A rack for housing dosimeters includes a plurality of blocks having a rectangular shape. Each block is provided with a housing space for housing the dosimeter and an entrance opened in a front surface of the block for inserting the dosimeter therethrough. Each block... | 07/31/2007 |
| 7249862 | Power tool with additional function The present invention provides an electric tool which includes an electrical device, such as a radio, as an additional function, and is lightweight and easy to handle for operation. The electric tool includes a lithium-ion secondary battery as a power supply, and is... | 07/31/2007 |
| 7247954 | Portable AC power system A portable ac power system for providing cordless remote electrical power. The portable ac power system includes a pair of portable power supply devices, and a recharging assembly. The pair of portable power supply devices each including a portable housing, an outle... | 07/24/2007 |
| 7248152 | Automatic on/off switch for vehicle power outlets A vehicle power outlet switch (10) can include a threshold detector (14) for comparing a predetermined threshold with a vehicle battery characteristic and a power switch (18) controlled by the output of the threshold detector. Note, the vehicle ... | 07/24/2007 |
| 7248019 | Cordless power tool A cordless power tool such as a power staple gun 1 includes a power supply circuit of an electric double layer capacitor 8 and a lithium-ion battery 11. In a standby state, the lithium-ion battery charges the electric double layer capacitor, and... | 07/24/2007 |
| 7242115 | Universal power converter A universal power converter comprises a body and a circuit module. The circuit module includes a power converter circuit; the power converter circuit being a power supply and charging circuit of a power supply; and a voltage adjusting circuit; the voltage adjusting ... | 07/10/2007 |
| 7238443 | Battery packs suitable for use with battery powered appliances Cooling air intake port (52), cooling air exhaust port (55), and securing walls (86, 87), which contact and secure the side surfaces of one or more battery cells (72), may be defined within two battery pack housing halves (50, 80).... | 07/03/2007 |
| 7233115 | LED-based lighting network power control methods and apparatus Multiple lighting apparatus coupled together to form a lighting network, in which operating power is efficiently provided throughout the network based on a distributed DC voltage or a distributed AC voltage. Based on various power driver configurations, each lightin... | 06/19/2007 |
