Patents by Inventor John P. Peterson, Jr.

John P. Peterson, Jr. 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).

  • Nuclear reactor cooling system decontamination reagent regeneration
    Patent number: 4512921
    Abstract: An improved method for decontaminating the coolant system of water-cooled nuclear power reactors and for regenerating the decontamination solution. A small amount of one or more weak-acid organic complexing agents is added to the reactor coolant, and the pH is adjusted to form a decontamination solution which is circulated throughout the coolant system to dissolve metal oxides from the interior surfaces and complex the resulting metal ions and radionuclide ions. The coolant containing the complexed metal ions and radionuclide ions is passed through a strong-base anion exchange resin bed which has been presaturated with a solution containing the complexing agents in the same ratio and having the same pH as the decontamination solution.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: April 23, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Larry D. Anstine, Dean B. James, Edward A. Melaika, John P. Peterson, Jr.