Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7349889 | System and method for remotely diagnosing faults A method and system for diagnosing a fault that includes a decision tree having a plurality of decision points wherein at least some of the plurality of decision points terminate in a resolution point representing a diagnosis for the fault. Also included is a plural... | 03/25/2008 |
| 7013227 | System and method for determining harmonic contributions from non-linear loads A system and method for determining harmonics caused by non-linear loads are disclosed. Briefly described, one embodiment is a method comprising metering voltage on an electric power system; metering current on the electric power system; determining a predicted curr... | 03/14/2006 |
| 6947797 | Method and system for diagnosing machine malfunctions A system (830) and method (800) for diagnosing a malfunctioning machine. A fault event is selected (806) together with sequential operating parameter data (808) from a selectively focused time interval about the fault event for evaluation... | 09/20/2005 |
| 6853930 | System for aiding the preparation of operation and maintenance plans for a power generation installation In order to provide an operation and maintenance planning aiding system for a power generation installation which prepares an operation plan for a plurality of power generation units by making use of actual plant data and based on a total judgement including a varie... | 02/08/2005 |
| 6789051 | Method and apparatus for providing a simulation of a welding process using integrated models A method and apparatus for providing a simulation of a welding process using integrated models which are interconnected by an interconnection tool to determine stresses and distortions of a material being welded. The method and apparatus includes determining a model... | 09/07/2004 |
| 5999894 | Method for the analysis of process data of an industrial plant In a method for the analysis of process data of an industrial plant, in particular a power station plant, parts of the plant are automatically controlled for the purpose of information compression, filtering and diagnosing faults in good time. Features ch... | 12/07/1999 |
| 5930315 | Process management using component thermal-hydraulic function classes A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at... | 07/27/1999 |
| 5854590 | Method for generating a fault indication signal The invention concerns a method for generating a fault indication signal in the event of a fault in an electric power supply network being monitored through a neural network arrangement. In order to rapidly generate fault indication signals capable of dis... | 12/29/1998 |
| 5796631 | Method and apparatus for monitoring and characterizing power quality, faults and other phenomena in network power systems A method and apparatus for receiving, monitoring and characterizing network power information in real time through the use of a specialized display system. A processor receives three phase current and voltage information from a network power relay, conver... | 08/18/1998 |
| 5796628 | Dynamic method for preventing voltage collapse in electrical power systems Given the current operating condition of a power-generating system (obtained from real-time data), the near-term (e.g., after 25 min.) load demand at each bus (obtained from short-term load forecast) and the generation dispatch (based on economic dispatch... | 08/18/1998 |
| 5787138 | Supervision of a neutron detector in a nuclear reactor A method of monitoring neutron flex detectors in a nuclear reactor in a neural network is provided. The network comprises an input layer which receives a number of input signals corresponding to values of a measured signal at different times and an output... | 07/28/1998 |
| 5748496 | Diagnosis system A diagnosis system having sensors for supervising a plant, signal processors for processing signals of the sensors, and a state quantity arithmetic operation unit. The state quantity arithmetic operation unit calculates a quantity of state expressing the ... | 05/05/1998 |
| 5732193 | Method and apparatus for behavioristic-format coding of quantitative resource data/distributed automation protocol A method for behavioristic-format coding of quantitative resource data for control, planning and communication purposes in line businesses, utilities, etc. An individual coding unit can be used in a specific real-time object-oriented behavioristic control... | 03/24/1998 |
| 5724254 | Apparatus and method for analyzing power plant water chemistry A power plant water chemistry analysis apparatus and method relies upon water chemistry sensors to obtain power plant water chemistry data characterizing the chemical activity of a power plant water system. An analytical model processor is used to generat... | 03/03/1998 |
| 5634039 | Method and management system for controlling, monitoring and regulating complex industrial processes in particular, such as in a nuclear power plant A method is provided for controlling, monitoring and regulating processes in industrial plants, especially complex industrial processes, such as plant management in failure mode situations in a nuclear power plant. Robots provided as a computation program... | 05/27/1997 |
| 5629862 | Rule-based procedure for automatic selection of contingencies in evaluation of dynamic security of a power distribution system Dynamic security analysis of a power system is divided into several diverse sub-problems, including sub-problems that may be analyzed using artificial intelligence ("AI") technology. A rule-based topological analysis procedure distinguishes between outage... | 05/13/1997 |
| 5625574 | Method and data processing system for monitoring operating states of a technical plant The method and the data processing system of the invention monitor the operating states of a technical plant. The operating states of the technical plant are characterized with measured values measured or modeled at a lowest level of the system. The plant... | 04/29/1997 |
| 5623579 | Automated method for the systematic interpretation of resonance peaks in spectrum data A method for spectral signature interpretation. The method includes the creation of a mathematical model of a system or process. A neural network training set is then developed based upon the mathematical model. The neural network training set is develope... | 04/22/1997 |
| 5587930 | Fault diagnosis device A fault diagnosis device searches for causes of fault of a device under test via a fault tree having a tree structure corresponding to the hardware organization of the device under test, where the nodes of the fault tree correspond to the units of the dev... | 12/24/1996 |
| 5586066 | Surveillance of industrial processes with correlated parameters A system and method for surveillance of an industrial process. The system and method includes a plurality of sensors monitoring industrial process parameters, devices to convert the sensed data to computer compatible information and a computer which execu... | 12/17/1996 |
| 5553003 | Distributed control system In a control system equipped with a plurality of subsystems and a supervising subsystem for supervising these subsystems, a subgoal achievement performance is calculated by the subsystem using its own knowledge and its own condition with respect to a subg... | 09/03/1996 |
| 5550751 | Expert system for detecting high impedance faults An expert detection system includes a method and apparatus for detecting high impedance faults occurring on a distribution circuit coupled to an AC power source. Based upon an expert's knowledge of high impedance fault behavior and the performance of vari... | 08/27/1996 |
| 5442555 | Combined expert system/neural networks method for process fault diagnosis A two-level hierarchical approach for process fault diagnosis is an operating system employs a function-oriented approach at a first level and a component characteristic-oriented approach at a second level, where the decision-making procedure is structure... | 08/15/1995 |
| 5329465 | Online valve diagnostic monitoring system An online valve monitoring system senses operational characteristics of a valve and provides a diagnosis of aberrations in the characteristics. Sensors, coupled to a valve, supply sensor signals as output to a data acquisition system to be transmitted to ... | 07/12/1994 |
| 5306154 | Intelligent education and simulation system and method An intelligent education and simulation system which is capable of executing an optimized follow-up reeducation to the learner reflecting his/her idiosyncrasy toward understanding in learning. The intelligent education and simulation system has an executi... | 04/26/1994 |
| 5305426 | Plant operation support system for diagnosing malfunction of plant In response to an alarm, an inference engine in a plant operation support system calculates reliabilities of the appearance of phenomenons based on process data from the plant and a knowledge data base. The knowledge data base refers to diagnosis informat... | 04/19/1994 |
| 5265035 | System diagnostics using qualitative analysis and component functional classification A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydra... | 11/23/1993 |
| 5167010 | Expert advice display processing system The present invention provides expert advice produced by an expert system 16 as a graphic display that indicates to the user a range 64 in which an actual value 62 of a parameter should be kept for safe or efficient operation of the process being monitore... | 11/24/1992 |
| 5005351 | Power plant condenser control system A system and method for controlling the operation of a steam condenser in a power plant which includes a steam turbine, the condense having: a steam flow path including a steam inlet connected to receive turbine exhaust steam from the turbine steam outlet... | 04/09/1991 |
| 4961898 | Reactor internals and core support monitoring system A nuclear reactor monitoring system includes incore and excore neutron detectors for producing neutron noise signals and system data including at least one of reactor coolant pump motor current, temperature and pressure of the reactor coolant system and p... | 10/09/1990 |
| 4853175 | Power plant interactive display An interactive display apparatus and method for a plant operating at a plurality of process parametes from which a current plant status can be calculated, and from which symptoms can be diagnosed which indicate the existence of transient conditions of pla... | 08/01/1989 |
| 4803040 | Expert system for surveillance and diagnosis of breach fuel elements An apparatus and method are disclosed for surveillance and diagnosis of breached fuel elements in a nuclear reactor. A delayed neutron monitoring system provides output signals indicating the delayed neutron activity and age and the equivalent recoil area... | 02/07/1989 |
| 4698756 | Generator stator winding diagnostic system A diagnostic system for an electrical generator winding which has first and second passages for conduction of cooling gas. The temperature of the gas exiting the passages is determined and converted to a normalized value which may be either high, low or n... | 10/06/1987 |
| 4644479 | Diagnostic apparatus Diagnostic apparatus utilized to monitor a steam turbine-generator power plant. A plurality of sensors around the plant provide data to the diagnostic apparatus which utilizes a digital computer to come to some conclusion relative to actual or impending m... | 02/17/1987 |
| 4632802 | Nuclear plant safety evaluation system An apparatus for monitoring and evaluating the degree of risk associated with continued operation of a nuclear power plant while one or more plant components has failed or is otherwise unavailable. The apparatus has several functional sections, including ... | 12/30/1986 |
| 4563746 | Method of operating power plants This invention refers to a plant operating method for overcoming an abnormal status of a plant. A plant data is detected from the plant, and all plant state members indicating an abnormality of the plant are identified from the plant data. The plant opera... | 01/07/1986 |
| 4517468 | Diagnostic system and method A diagnostic system wherein a central diagnostic center receives sensor data relative to the operating condition of a plurality of remote plants. Each plant records just certain sensor signals and transmits them at respective prescheduled transmisssion ti... | 05/14/1985 |
