Patents by Inventor Walter S. Ching

Walter S. Ching has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4584165
    Abstract: A redundant reactivity control system, operating in conjunction with other systems in a nuclear power plant, to mitigate the potential consequences of an anticipated transient without scram event, is described. The invention interfaces to a boiling water nuclear reactor with the reactor's neutron monitoring system, standby liquid control system, control rod drive system, reactor recirculation system, reactor water clean-up feed water control system, and control room and local panels. Two divisionally separated control panels include associated detection and actuation logic and the necessary interface logic to other systems to perform the specific functions in response to an anticipated transient without scram event. Each separate division includes two identical channels. Actuation of any associated reactor system by the invention requires the agreement of the two channels within a division.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: April 22, 1986
    Assignee: General Electric Company
    Inventors: Patricia A. Wilson, Kenneth B. Stackhouse, Sujit Chakraborty, Walter S. Ching, William D. Hill, John B. Knepp, James P. Ward, Warren L. Zediker
  • Patent number: D289034
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: March 31, 1987
    Assignee: General Electric Company
    Inventors: Walter S. Ching, Edward M. Chu, Alan B. Jones, Randall J. Collins, Barry H. Simon, Lyle H. McCarty