Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8168901 | Cutouts with automatic reclosing A cutout is used in an electrical distribution network to electrically connect a first electric cable with a second electrical cable, The cutout includes an electrically non-conductive insulator having first and second end. A first terminal assembly is secured to th... | 05/01/2012 |
| 8084891 | Method and apparatus for optimizing synchronous switching operations in power systems A method and an apparatus for optimizing switching operations executed by a switching device coupled to an AC power line, wherein signals related to the waveform of the electrical phases of the power line are acquired. When a command for executing a switching operat... | 12/27/2011 |
| 8082500 | Method and apparatus for communicating with an intelligent electronic device associated to a switching device in power systems A method and apparatus for communicating with an intelligent electronic device coupled to a switching device used in a power system, wherein a user-interface software program operates on a computing device which is operatively connected to the intelligent electronic... | 12/20/2011 |
| 8045307 | Faulted phase decision method between current and voltage based delta phase selectors A method of identifying fault conditions in a three phase power system includes monitoring the changes of both the current and voltage properties on a three phase power network. A maximum phase change value of both the current and voltage is determined. Either the v... | 10/25/2011 |
| 8000933 | Method and apparatus for showing data representative of the accuracy of operations of a high-voltage switchgear A method and an apparatus for showing data representative of the accuracy of switching operations executed by a high-voltage switchgear which is operatively coupled to a power line and to a synchronous switching device. Data related to switching operations executed ... | 08/16/2011 |
| 7979222 | Short-term load forecasting based capacity check for automated power restoration of electric distribution networks A method of forecasting loads on a distribution network is disclosed. The method employs load profiles in combination with short-term load estimations to forecast expected loads on a distribution network. The predicted loads may then be used by power restoration con... | 07/12/2011 |
| D640642 | Protective cover | 06/28/2011 |
| 7948352 | Wirelessly powered secondary electrical distribution equipment A wireless secondary assembly is disclosed for use in an electrical distribution network. The secondary assembly may include a wireless source electrically connected to a first electric cable and adapted to emit an electromagnetic power signal. A wireless receiver i... | 05/24/2011 |
| 7930581 | Automation device The invention relates to an automation device, with which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is assigned at least one ... | 04/19/2011 |
| 7904266 | Method and apparatus for calculating the separation time of arcing contacts of a high-volume switchgear A method and an apparatus for calculating the separation time of the arcing contacts of a high-voltage switchgear which is operatively coupled to a synchronous switching device and to an auxiliary switch having auxiliary contacts operatively connected to the arcing ... | 03/08/2011 |
| 7889480 | Panelboard A panelboard mounts and electrically connects to a plurality of circuit breakers. The panelboard includes a central body portion having a top surface. At least one bus bar is positioned within the central body portion. A pair of opposed legs extend the longitudinal ... | 02/15/2011 |
| 7889342 | Web measurement device A sensor is provided that measures web caliper using optical and magnetic measuring devices. The optical measuring devices may employ a confocal chromatic aberration method to accurately determine the distance to the moving web and the magnetic devices may be ferrit... | 02/15/2011 |
| 7847943 | Web measurement device A sensor is provided that measures web caliper using optical and magnetic measuring devices. The optical measuring devices may employ a confocal chromatic aberration method to accurately determine the distance to the moving web and the magnetic devices may be ferrit... | 12/07/2010 |
| 7864675 | Automation device The invention relates to an automation device (100, 100′), with which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is a... | 01/04/2011 |
| 7859809 | Test plug with overvoltage protection A test plug for use with protective relays has a circuit that when it detects an overvoltage on the secondary side of a current transformer limits the overvoltage amplitude and the occurrence of the overvoltage to a predetermined number of peaks that are less than a... | 12/28/2010 |
| 7832079 | Method for producing a vacuum interrupter The invention relates to a vacuum interrupter chamber and a method for producing the same according to the preambles of patent claims 1 and 3. In order here to improve a vacuum interrupter chamber of this type and a method for producing the same and th... | 11/16/2010 |
| 7780817 | Measurement system for improved paper roll runnability A method for measuring both caliper and tension of a web such as paper wound into a roll. The method may include a standard caliper sensor whose air supply is selectively modified to allow for both the measurement of caliper and tension of the web. In another embodi... | 08/24/2010 |
| D621793 | Test switch with improved marking | 08/17/2010 |
| D621784 | Modular test plug | 08/17/2010 |
| 7751166 | Advanced feeder architecture with automated power restoration A method and apparatus for restoring power to loads connected to a feeder powered by a power source. The feeder is provided with a plurality of switching devices and a master electronic device which is in operative communication with the switching devices and has a ... | 07/06/2010 |
| 7720625 | Method of testing the installation of a measuring device The invention relates to a method for operating a measuring device, especially a flowmeter. The aim of the invention is to simplify inspection if the sensors have been correctly installed. For this purpose, the installation state is detected by the sensors themselve... | 05/18/2010 |
| D611004 | Test switch with improved marking | 03/02/2010 |
| 7662262 | Supercalendering optimization using a steam shower There is described a method and apparatus for applying steam from a steam source to a moving web to thereby improve the smoothness and gloss of the web. A housing has at least one cooling chamber upstream and at least one steam chamber downstream. The cooling air in... | 02/16/2010 |
| D595662 | Test switch | 07/07/2009 |
| D595170 | Test plug | 06/30/2009 |
| 7550960 | Method and apparatus for measuring voltage in a power switching device A method and apparatus for determining a voltage potential in a power switching device. The method and apparatus uses a conductive shield surrounding a coil positioned around a connector in a power switching device. The coil is used to provide a current measuring de... | 06/23/2009 |
| D593961 | Test switch | 06/09/2009 |
| 7509877 | Electrode with electrode surface for magnetically inductive flow meter The invention relates to a special electrode surface for electrodes of a flow measuring device. In order to provide more measurement reliability for abrasive substances to be measured, for example in multiphase substances to be measured, according to the invention t... | 03/31/2009 |
| 7505861 | Method for monitoring the installation of a measurement device The invention relates to a method for monitoring a measurement device, in particular a flow measurement device, and to a measurement device itself. In order in this case to reliably preclude measurement errors resulting from incorrect installation, the invention pro... | 03/17/2009 |
| D585388 | Test switch | 01/27/2009 |
| 7480055 | Two-beam interferometer for fourier transform spectroscopy with double pivot scanning mechanism A two-beam interferometer for Fourier Transform spectroscopy has a double pivot scanning mechanism. The interferometer has two rigid pendulums that are each rotatable to swing around an associated one of distinct axes of rotation. A linkage links the two rigid pendu... | 01/20/2009 |
| D583334 | Test switch | 12/23/2008 |
| 7446491 | Intelligent power management for actuators A system and method is disclosed for intelligent power management of actuators such as those used in papermaking. Multiple power supply units are connected to a common power bus. The power bus is connected at predetermined locations to a communications bus. The comm... | 11/04/2008 |
| 7444885 | Vortex flow measuring instrument The vortex flow meter provides a surface which is simple but nevertheless resistant to the substances to be measured. All parts of the measurement tube of the vortex flow meter which come in contact with the substance to be measured are coated with a less noble mate... | 11/04/2008 |
| 7386052 | Automation device using FSK modulation The invention relates to an automation device, with which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is assigned at least one ... | 06/10/2008 |
| 7385155 | Apparatus for securing a conductor in a power switching device A power switching device for use in a power distribution network has a conductive element that is shaped in a non-cylindrical form. The non-cylindrical shape of the conductive element allows the non-conductive material such as epoxy that is used to form the body of ... | 06/10/2008 |
| 7376664 | Method for evaluating a transformer design A preferred method for evaluating a transformer design using data representing test results from a plurality of transformers and stored in a data base includes comparing the data representing test results to predetermined criteria for the test results to determine w... | 05/20/2008 |
| 7358781 | Automation device with stored profile The invention relates to an automation device, in which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is assigned at least one cl... | 04/15/2008 |
| 7358744 | Method for testing the serviceability of transducers The invention relates to a two-wire transducer in automation engineering that outputs a measurement signal as an injected current. For the method to test the serviceability, it is proposed to increase the DC loop current (IS), independently of the measure... | 04/15/2008 |
| 7336338 | Liquid-crystal indicator of voltage presence The subject of the invention is a liquid crystal indicator of voltage presence in electric conductors and equipment. The device is used to indicate the presence of an AC voltage, especially in medium and high voltage systems. The indicator according to the invention... | 02/26/2008 |
