1
Christian T Kemper, Robert L Osborne, James C Bellows: Diagnostic system and method. Westinghouse Electric, D Schron, May 14, 1985: US04517468 (171 worldwide citation)

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 times. If certain activation limits are exceede ...


2
Christian T Kemper, James C Bellows, Pamela J Kleinosky: Diagnostic apparatus. Westinghouse Electric, D Schron, February 17, 1987: US04644479 (145 worldwide citation)

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 malfunctions in the plant components. The comp ...


3
James C Bellows, Daniel E Fridsma: Method and apparatus for remotely controlling sensor processing algorithms to expert sensor diagnoses. Westinghouse Electric, June 16, 1992: US05122976 (88 worldwide citation)

A system is disclosed including a data center computer for data collection and process control of a complex processing plant. The data center computer collects raw sensor data. The raw data is sent, by a conventional communicator routine, to a remote expert system for sensor diagnosis of faulty sens ...


4
James C Bellows, Serge P Barton: Automated rotor welding processes using neural networks. Westinghouse Electric, M G Panian, February 1, 1994: US05283418 (76 worldwide citation)

Methods and apparatus for monitoring an arc welding process are disclosed. In a preferred embodiment, the present invention creates a digital representation of the arc created during welding and, using a neural network computer, determines if the arc is representative of normal or abnormal welding c ...


5
James C Bellows, Karl E Harper: Method for associating text in automatic diagnostic system to produce recommended actions automatically. Westinghouse Electric, January 14, 1992: US05081598 (70 worldwide citation)

A method for automatically generating recommended actions in response to a diagnosis uses a list ordered by impact of the actions. The list is evaluated using required evidence which must be supported by data and assumed evidence which must not be contradicted by the data. The method is applied to t ...


6
James C Bellows, Robert L Osborne, Avelino J Gonzalez, Christian T Kemper: Automated system to prioritize repair of plant equipment. Westinghouse Electric, July 21, 1992: US05132920 (52 worldwide citation)

The system of the present invention uses the importance of a piece of malfunctioning equipment, the severity and the confidence level in a diagnosis to determine repair priority of the equipment by obtaining the product (46) of the confidence level (CF), importance (IMP) and severity (SEV). The thes ...


7
James C Bellows, Michael Twerdochlib: Flow measurement device. Westinghouse Electric, D C Abeles, December 13, 1988: US04790194 (24 worldwide citation)

Fluid flow is determined for a large flow pipe based upon differential pressure across an orifice in the pipe having a known cross-sectional area. In one form, the orifice is variable and adjusted in response to differential pressure so as to maintain differential pressure at a constant value. Flow ...


8
James C Bellows, Rudolph Koubek III: Steam turbine rotor having graded weldments. Westinghouse Electric, June 18, 1991: US05024582 (21 worldwide citation)

This invention provides stream turbine components, such as rotor disc, which include a ring member comprising a low alloy ferrous base metal having less than about 6 wt. % alloy ingredients and a ferrous graded layer disposed on the ring member which includes a plurality of layered weldments having ...


9
William A Byers, Gerald L Carlson, James C Bellows: Rugged dissolved carbon dioxide monitor for high purity water. Westinghouse Electric, January 31, 1989: US04801551 (20 worldwide citation)

A continuous on-line monitor of carbon dioxide dissolved in high purity water includes a cation conductivity cell and associated bridge for measuring first and second cation conductivities at first and second temperature and a heater for heating the sample from the first to the second temperature. A ...


10
James C Bellows: System and method for detecting contaminants in a steam power generating system. Westinghouse Electric, D C Abeles, April 18, 1989: US04822744 (13 worldwide citation)

Method for monitoring changes in contaminant concentration levels between a feedwater inlet and a steam outlet in a steam generating system and system for detecting sources of contaminants in a steam generating system. The method includes a reliable means for detecting organic contaminants, chloride ...