U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Plant maintenance with predictive diagnostics

Patent 5311562 Issued on May 10, 1994. Estimated Expiration Date: Icon_subject December 1, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

On line interactive monitoring of the execution of process operating procedures
Patent #: 4803039
Issued on: 02/07/1989
Inventor: Impink, Jr. ,   et al.

Power plant interactive display
Patent #: 4853175
Issued on: 08/01/1989
Inventor: Book, Sr.

Cycle monitoring method and apparatus
Patent #: 4908775
Issued on: 03/13/1990
Inventor: Palusamy, et al.

Corrosion-erosion trend monitoring and diagnostic system
Patent #: 4935195
Issued on: 06/19/1990
Inventor: Palusamy, et al.

Reactor internals and core support monitoring system
Patent #: 4961898
Issued on: 10/09/1990
Inventor: Bogard, et al.

Expert system for surveillance, diagnosis and prognosis of plant operation Patent #: 5009833
Issued on: 04/23/1991
Inventor: Takeuchi, et al.

Inventors

Assignee

Application

No. 983935 filed on 12/01/1992

US Classes:

376/215, By electronic signal processing circuitry (e.g., plural redundant circuits)60/660, Having condition responsive control376/216, Plural sensed different conditions or measured variables correlated422/105CONTROL ELEMENT RESPONSIVE TO A SENSED OPERATING CONDITION

Examiners

Primary: Walsh, Donald P.
Assistant: Voss, Frederick H.

Attorney, Agent or Firm

Foreign Patent References

  • 0411873 EP 06/13/1991

International Class

G21C 007/36

Abstract

An integrated information system is provided for a plant with interactive processes running in functional equipment subsets, such as a nuclear power generation plant. Sensors are operatively coupled to monitor processes and equipment in the plant, collecting sample data for assessing operational conditions and for predicting maintenance requirements based on loading of the equipment. One or more processors access the sample data and compares present conditions to diagnostic specifications, technical specifications and historical data stored in memory and indexed to equipment subsets and functional operating groups. The processor(s) generate prioritized reports to alert users to potential operational and/or maintenance problems. In addition to the prioritized reports, the processor accesses and outputs to the users reports of the diagnostic and technical specifications applicable to the process parameters exhibiting the potential problems. These specifications are provided in successive levels of detail and are cross referenced between related processes and related items of equipment. The information system integrates operations, maintenance, engineering and management interests in a common database of information via network-coupled data terminals.

Other References

  • Westinghouse Plant Monitoring and Diagnostics System (undated
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