...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7751923 | Method for control of the thickness of extruded film A process for the automatic control of the thickness of extruded film lowers the deviations in the thickness of the film more quickly after the start of the extrusion process. The process includes the measurement of the thickness profile of the film just extruded by... | 07/06/2010 |
| 7742835 | Profile control method and system therefor A profile control method for controlling a profile in the width direction of a sheet by using a plurality of actuators, includes calculating an envelope profile connecting local peaks of the profile; and calculating a manipulated value of each actuator with the obje... | 06/22/2010 |
| 7435314 | Method for the production of a fibrous web In a method for the production of a fibrous web, especially a paper or cardboard web, an automatic ash control system and an automatic retention control system for the reduction or suppression of an interactive build-up of the two controls are linked via a model for... | 10/14/2008 |
| 7399380 | Jet velocity vector profile measurement and control In a papermaking system having a headbox to dispense a jet of liquid and paper forming fibers, an improvement comprising at least one sensor arrangement for simultaneously or sequentially measuring in at least one location the jet velocity or jet flow correlation of... | 07/15/2008 |
| 7396437 | Method and system for controlling the web formation Method and system for controlling web formation in the forming section of a paper machine includes measuring the amount of white water occurring during drainage in at least one drainage region of the forming section; and carrying out the web formation control on the... | 07/08/2008 |
| 7311803 | Distribution of a flowing medium Methods for uniformly distributing a flowing medium to a surface such as that of a rotary liquid permeable roll are disclosed where the flowing medium is distributed by a number of distribution units, the method including distributing the flowing medium to each of t... | 12/25/2007 |
| 7300548 | Method and apparatus for controlling cross-machine direction (CD) controller settings to improve CD control performance in a web making machine A web making machine is monitored to identify at least one cross-machine direction (CD) actuator that is developing local mapping problems. The identified CD actuator and a segment of surrounding actuators are probed to determine a performance curve for the actuator... | 11/27/2007 |
| 7278847 | Dynamically configured 3-D object creation system with built-in printhead failure correction mechanism A three dimensional object creation system that prints objects layer by layer, the system including a plurality of printheads, the system printing at least part of each of multiple layers simultaneously, the system configured to enable at least one first printhead t... | 10/09/2007 |
| 7264692 | Method for monitoring the operation of a doctor assembly in a paper machine and a doctor assembly for implementing the method The operation of a doctor assembly (16) in a paper machine is monitored. In case of a malfunction, the paper machine's (10) control devices (14-14′, 15) are used to carry out the necessary measures for eliminating the malfunction and ca... | 09/04/2007 |
| 7236166 | High-resolution rapid manufacturing The present invention is a method for forming an object, the method comprising jetting a first material to form a plurality of layers that define a support structure increment, and extruding a second material to form a layer of the object. The layer of the object su... | 06/26/2007 |
| 7220115 | 3-D product printing system incorporating an electrical connection printhead A system that prints three dimensional products, the system including at least one printhead that prints electrical connections to at least one object incorporated in the products. ... | 05/22/2007 |
| 7206654 | Digitally active 3-D object creation system A three dimensional object creation system that prints objects layer by layer, the system including a plurality of printheads, the system printing at least part of each of multiple layers simultaneously. ... | 04/17/2007 |
| 7204914 | System and method for controlling a processor including a digester utilizing time-based assessments A system for controlling a processor having at least one sampling port connected to a stage of the processor in order to sample a reactant product from the processor. The system includes a controller configured to control a processing parameter of the processor base... | 04/17/2007 |
| 7155499 | System controller for controlling a control network having an open communication protocol via proprietary communication A system controller is adapted to be integrated into a control network including a plurality of device controllers that communicate through the network via a network specific communication protocol for controlling a plurality of network devices. The system controlle... | 12/26/2006 |
| 7155356 | Quality and condition monitoring based on spectrum separating measurement A method of controlling the quality and/or condition of a fibre web in a process for manufacturing and/or finishing the fibre web, which includes, monitoring the fibre web with at least one optical spectrum separating measurement device, determining a quality variab... | 12/26/2006 |
| 7147164 | Cross direction wireless actuator An intelligent wireless cross direction (CD) actuator includes a wireless radio transceiver, a controller and a memory section. The wireless radio transceiver is used for transmitting and receiving control and functional information to and from other intelligent wir... | 12/12/2006 |
| 7144242 | System for creating 3D products A system for creating three dimensional products is provided. The system has a plurality of subsystems, with each subsystem configured to print one layer of N1 of a plurality of layers making up a three dimensional product, where N1 is greater ... | 12/05/2006 |
| 7128808 | Method and apparatus for identifying mapping of paper machine actuator A method and an apparatus for identifying mapping of a paper machine by means of a mapping test. The invention comprises forming a mapping model which takes the linear and non-linear shrinkage of a paper web into account. The mapping test result is analyzed to form ... | 10/31/2006 |
| 7127320 | Render-resolve method of obtaining configurations and formatting it for use by semiconductor equipment interfaces A method for managing recipes in a semiconductor manufacturing process which includes resolving a recipe to provide a resolved recipe using a configuration for a current context and rendering the recipe to provide a rendered recipe. The rendered recipe corresponds t... | 10/24/2006 |
| 7117122 | Field maintenance tool An improved field maintenance tool is provided. The tool is operable with process communication loops in accordance with a plurality of process industry standard protocols. Aspects of the invention include hardware features such as an infrared port; removable memory... | 10/03/2006 |
| 7048827 | Dynamic calibration of papermaking machine Sheetmaking processes such as papermaking making systems employ water weight sensors underneath the moving water permeable wire that supports the wet stock (pulp slurry). A dynamically compensated calibration equation that equates the water weight plus fiber weight ... | 05/23/2006 |
| 7016742 | Decision support for operations and maintenance (DSOM) system A method for minimizing the life cycle cost of processes such as heating a building. The method utilizes sensors to monitor various pieces of equipment used in the process, for example, boilers, turbines, and the like. The method then performs the steps of identifyi... | 03/21/2006 |
| 6997698 | Method for creating a 3-D object A system that executes a process, the system including a plurality of subsystems, each of which performs a stage of the process, each of the subsystems configured to perform one of a first subset of N1 of the stages, where N1 is greater than 1 ... | 02/14/2006 |
| 6993408 | Method for the control of quality in a paper web Paper quality is controlled in the production of a paper web, where paper stock is fed from the headbox of the paper machine onto the wire section, whereby the paper stock is formed into a paper web. The headbox flow rate and consistency are measured from the paper ... | 01/31/2006 |
| 6988018 | System and method for analyzing controlling forming sections of a paper machine in operation A system and method for analyzing and controlling various parameters of a paper machine in its operation, in particular in the forming section of the paper machine, including but not limited to characteristics relating to foil blades wherein the activity and drainag... | 01/17/2006 |
| 6968239 | Universal tool for supervising and controlling automatons A tool which is entrusted with supervising and driving automatons that are “smart”; namely the tool can communicate with a microcomputer. This tool has a microcomputer, with a spreadsheet program connected through a driver, an operating system of the microcomput... | 11/22/2005 |
| 6959356 | Multi-protocol field device and communication method A multi-protocol smart field device uses a Fieldbus communication protocol to communicate process control information and uses a HART communication protocol to enable local configuration of the field device via a hand-held HART communicator. The multi-protocol smart... | 10/25/2005 |
| 6953516 | Process for making throughdried tissue by profiling exhaust gas recovery The energy efficiency of a throughdrying papermaking process is improved by recycling exhaust gas from one or more throughdryers prior to throughdrying to profile the consistency of the web. ... | 10/11/2005 |
| 6950777 | Method and system for assessing pulp and paper mill performance A system and method is provided for analyzing data obtained during manufacture of a web of paper or paperboard on a machine. The system comprises a computer including a database module, a statistical analysis module, and a processor for executing the modules. The da... | 09/27/2005 |
| 6915180 | Identification method for cross directional position correspondence and manufacturing equipment using this method for sheet form products The present invention solves the quality control problems that exist in manufacturing equipment for sheet form products, that is, although the position correspondence between actuators and measuring points has been measured and switched for every raw material recipe... | 07/05/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6889166 | Intrinsically safe field maintenance tool An improved intrinsically safe field maintenance tool is provided. The tool is operable with process communication loops in accordance with a plurality of process industry standard protocols. Aspects of the invention include hardware features such as an infrared por... | 05/03/2005 |
| 6856850 | Controlling web tension, and accumulating lengths of web, using a festoon This invention pertains to processing continuous webs such as paper, film, composites, and the like, in dynamic continuous processing operations. More particularly, it relates to accumulating limited lengths of such continuous webs and to controlling tension in such... | 02/15/2005 |
| 6833054 | Method and apparatus for adjusting chemical dosage of pulp processing stage A method and an apparatus for adjusting a chemical dosage of a pulp processing stage. The method comprises measuring a change in a variable in dependence on the chemical dosage and the chemical dosage to be added, and determining a model describing the change in the... | 12/21/2004 |
| 6807510 | Model predictive controller for coordinated cross direction and machine direction control A process for coordinated control of machine direction MD and cross direction CD actuators in a sheetmaking machine for manufacturing a sheet of material is disclosed. The process involves measuring a plurality of sheet properties at regular intervals to collect she... | 10/19/2004 |
| 6799082 | Process control methods and apparatus The present invention provides a method for controlling a process by inputting a deviation between setpoint and process variables to a controller to calculate a controlled/manipulated variable, and then inputting the controlled/manipulated variable to the process, w... | 09/28/2004 |
| 6780284 | Method and apparatus for controlling moisture profile of moving paper web A method and an apparatus for controlling a moisture profile of a paper web, in which the moisture profile of the paper web prior to drying is measured. The measurement is carried out with a measuring device, which measures a cross-direction profile of the web subst... | 08/24/2004 |
| 6728592 | Streak detection in papermaking A method of detecting streaks in a web of, for example, moving paper which may be moisture, basis weight or caliper. A cross-direction profile is sensed and a moving average computed and then using minimum thresholds for the variation of the streak value from the av... | 04/27/2004 |
| 6728595 | Numerical controller and numerical control method for NC machine tools A feed velocity of a control axis and acceleration thereof do not exceed a maximum feed velocity and a maximum acceleration defined in mechanical specifications even if a radial operation is carried out for the purpose of a cut-in or escape operation in a contour de... | 04/27/2004 |
| 6647312 | Adaptive control methods and apparatus using frequency analysis of time series data The present invention provides a method for controlling a process by calculating a manipulated variable from a deviation between setpoint and control output variables and then using the manipulated variable, wherein the time-series data of the control out... | 11/11/2003 |