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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7737578 | Method and device for supporting the alternating current frequency in an electricity network The invention relates to a method and a device for supporting the frequency in an electricity network (5) during a sudden modification of the network load and/or generating power. According to the invention, modifications of the network load and/or generating... | 06/15/2010 |
| 7646110 | Voltage monitoring Embodiments of voltage monitoring are disclosed. ... | 01/12/2010 |
| 7501715 | Multi-output DC-DC converter A multi-output DC-DC converter is advantageous over the conventional multi-output DC-DC converter in terms of increased power efficiency and power density. The inventive multi-output DC-DC converter is characterized by that the rectifying circuit located at the outp... | 03/10/2009 |
| 7420293 | Electrical appliance energy consumption control methods and electrical energy consumption systems Electrical appliance energy consumption control methods and electrical energy consumption systems are described. In one aspect, an electrical appliance energy consumption control method includes providing an electrical appliance coupled with a power distribution sys... | 09/02/2008 |
| 7349766 | Systems and methods for remote power management using 802.11 wireless protocols Systems and methods are disclosed for using 802.11 based wireless protocols in various energy management applications wherein a host controller uses various types of communication networks to distribute information to an on-premise processor that in turn uses 802.11... | 03/25/2008 |
| 7292400 | Device for limiting current in a sensor A read/write device for a disk drive is disclosed. The read/write device includes a pre-amplifier and a recording head. The read/write device also includes a write signal path between the pre-amplifier and the recording head. The write signal path includes a write c... | 11/06/2007 |
| 7289887 | Systems and methods for remote power management using IEEE 802 based wireless communication links Systems and methods are disclosed for using 802.11 based wireless protocols in various energy management applications wherein a host controller uses various types of communication networks to distribute information to an on-premise processor that in turn uses 802.11... | 10/30/2007 |
| 7272732 | Controlling power consumption of at least one computer system At least one computer system receives power from a power system having a maximum power output based on a nominal power consumption of the at least one computer system. The power system is operable to detect an amount of power consumed by the at least one computer sy... | 09/18/2007 |
| 7245702 | Method and apparatus for determining and reporting the operational status of an integrated services hub The present invention discloses a method and apparatus for determining and reporting the operational status of an integrated services hub. The AC power supply and wide area network connection of the integrated services hub are monitored, and a signal is sent to a us... | 07/17/2007 |
| 7235891 | Power system having generator driven by engine An apparatus for controlling the operation of power conditioners (10) for supplying the generated power to an external power system such as a commercial power system, in which power conditioners (10) are interconnected to an external power system, the ... | 06/26/2007 |
| 7231283 | Method for regulating the power supply of a number of multiple field devices In a method for regulating the power supply of a plurality of field devices S1, S2, S3, A1, A2, connected to a data bus DBL and supplied with electrical current over the data bus DBL, the electrical current requirements of the indi... | 06/12/2007 |
| 7197429 | Diagnosis system for household electric appliances A diagnosis system for household electric appliances, such as refrigerators, freezers, and others, presenting multiple loads, energized by switches commanded by electronic c ontrols coupled to a command module, which energizes the loads and an interface. The system ... | 03/27/2007 |
| 7193410 | Transistor monitor for a multiphase circuit A monitor system and method are described for sensing voltage changes in a plurality of transistors of a multiphase circuit comprising a sensor connected to each one of the plurality of transistors for measuring a voltage drop across the each one, a difference detec... | 03/20/2007 |
| 7151327 | System and method for supply distribution A system and method for distributing a supply to plurality of machinery or appliances. The supply may be any of oil, gas, electrical power, water, heated and cooled air, etc. the plurality of appliances can include any of gas and oil powered devices, electrical devi... | 12/19/2006 |
| 7151234 | Outlet panel for single pin connectors A device for providing electrical power that includes one or more single pin outlets and one or more switches, each of the switches coupled to a respective one of the one or more single pin outlets. The at least one switch is actuatable by insertion of a pin in the ... | 12/19/2006 |
| 7105947 | Method and system for voltage tracking and sequencing in a power supply A method for controlling multiple voltages in a power supply includes providing a plurality of DC to DC power converters. Each power converter includes a pulse width modulator controller having a control pin. The method also includes when a voltage supply to the pow... | 09/12/2006 |
| 7099784 | Method and apparatus for preventing overloads of power distribution networks Systems and methods for monitoring power in power distribution systems are provided. In one aspect, a system for monitoring power includes a power monitoring device that measures a value of at least one characteristic of power provided to a branch of a power distrib... | 08/29/2006 |
| 7091630 | Device and method for inhibiting power fluctuation A device for inhibiting power supply voltage fluctuation that is caused by fluctuation of a load current generated by a load circuit. The device includes a current consumption circuit, a data generation circuit, and a D/A converter. The current consumption circuit i... | 08/15/2006 |
| 7049769 | Circuit arrangement and method for an illumination device having settable color and brightness It is intended to be possible to use a respective setting apparatus (E1, E2) to set the color and the brightness of an illumination device separately. Light sources having three different colors are operated for this purpose. Only one first power suppl... | 05/23/2006 |
| 7038398 | Kinetic illumination system and methods The present invention relates to methods of creating eye-catching displays by taking advantage of color-changing illumination provided by LED systems disclosed herein. Displays can be made to appear to change color or to move simply by changing the color of the ligh... | 05/02/2006 |
| 7034707 | System and device for monitoring at least one household electric user, in particular a household appliance A system that monitors at least a household electric user (HA1–HA4), in particular a household appliance, includes a monitoring device (MSA) that is connected between a source of electric energy (OUT) and the electric user, the monitoring device (MSA... | 04/25/2006 |
| 7030595 | Voltage regulator having an inverse adaptive controller A low drop-out (LDO) voltage regulator that has high a PSRR (Power Supply Ripple Rejection) performance and a high load regulation with low current consumption is disclosed. The voltage regulator doses not require any high gain error amplifier that may cause instabi... | 04/18/2006 |
| 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 |
| 7009312 | Versatile modular programmable power system for wireline logging A method and system for providing power to a wireline logging system includes a rectifier section operable to receive an AC input signal and generate a first DC power signal as an output. A converter section cascadedly coupled to the rectifier section converts the f... | 03/07/2006 |
| 6961642 | System and method for reducing an instantaneous load in an appliance An appliance having at least one component, a receiver, and a controller. The component is configured to operate in a normal operation mode and a resource savings mode; wherein an instantaneous resource demand of the at least one component is greater during the norm... | 11/01/2005 |
| 6940272 | Electric socket control device An apparatus that controls the supply of electrical power including one or more monitors adapted to sense a state of current flow supplied to a device, one or more controlled sockets, a power input; and a logic circuit. The logic circuit controls the supply of elect... | 09/06/2005 |
| 6922026 | Light fixture control system To provide a light fixture control system with which an inrush current is prevented at the time of motor activation, and a light fixture is prevented from rapidly dimming. In a vehicle including a light fixture to be driven by an output of a generator of the vehicle... | 07/26/2005 |
| 6900849 | Signal processing apparatus having means for reducing the power consumption A signal processing apparatus (1) includes a power supply input (20), a power supply connection (30) and a power supply output (27). A supply voltage generator (33) is connected to the power supply input (20) via disconnecti... | 05/31/2005 |
| 6848054 | Real-time computer thermal management and power conservation A real-time thermal management and power conservation apparatus and method for computers employs a monitor to determine whether a CPU may rest based upon a real-time sampling of temperature and CPU activity levels and activates a hardware selector to carry out the m... | 01/25/2005 |
| 6828696 | Apparatus and method for powering multiple magnetrons using a single power supply A system and method are provided to power a plurality of magnetrons devices. The system may include a power supply device to power a first magnetron device, a second magnetron device and a third magnetron device. A control device may control (or apportion) an amount... | 12/07/2004 |
| 6815915 | Device system for multiple motors A device for supplying energy by means of a first DC voltage source e.g. in the form of a DC voltage bus, a drive system comprising several electric motors is connected to said DC voltage bus. The electric motors are comprised e.g. in a number of yarn feeding device... | 11/09/2004 |
| 6693369 | Energy distribution, especially to elements of a motorvehicle air-conditioning device A voltage-regulation, protection and filtering assembly (20) is connected between a power-supply input and an energy output in order to deliver the same security-protected operating voltage to a number of elements (12a, 12b, 12b, 12c, 14, 16) via an energ... | 02/17/2004 |
| 6670728 | Method and system to automatically reduce generated power Consumer use of 240 VAC power can be reduced automatically by a power utility. A switch, remotely controllable by the power utility, can break the normal T1-P1 and T2-P2 power connections, and instead allow T1 to float, and coupled P1 and P2 together and ... | 12/30/2003 |
| 6628009 | Load balanced polyphase power distributing system The invention is an apparatus and a method for connecting loads to a polyphase power distribution system in such a way that the loads on the individual phases of the system are balanced. The apparatus includes an equipment rack having multiple electrical ... | 09/30/2003 |
| 6600237 | Method for controlling a plurality of electrical loads operated at the same time by a current source In a method for controlling a plurality of electrical loads operated at the same time by a current source using a clocked or pulsed operating current, the instant and/or duration of pulse driving for the operating current of at least one load are synchron... | 07/29/2003 |
| 6583520 | Dual-switching and dual-linear power controller chip The invention provides a new hybrid 4-in-1 power controller chip for a PC mainboard which integrates a synchronous buck switching regulator to supply the CPU core voltage, a standard buck switching regulator for I/O circuits, a linear controller for the G... | 06/24/2003 |
| 6538342 | Power supply with only feedforward in primary and multiple secondaries A multiple output power supply with a constant volt-second clamp circuit is provided. The multiple output power supply includes a transformer having a primary winding electrically connected to a supply voltage and at least two secondary windings for provi... | 03/25/2003 |
| 6509656 | Dual magnetrons powered by a single power supply A system and method are provided to power two magnetrons devices. The system may include a power supply device to power a first magnetron device and a second magnetron device. A control device may control an amount of current reaching at least the first m... | 01/21/2003 |
| 5895985 | Switch remoting system A switch remoting system for extending the function of an existing wired switch in a residence or other building, so that, in its extended function, the switch controls AC power available at one or more additional AC outlets. The basic system comprises tw... | 04/20/1999 |
| 5844326 | Managed electrical outlet for providing rank-ordered over-current protection A managed electrical outlet includes a plurality of electrical receptacles, a current sensor, logic circuitry, a switch driver, and one or more switches. The electrical current provided to the managed electrical outlet is measured by the current sensor, w... | 12/01/1998 |
