Patents by Inventor Jean P. Gauchon

Jean P. Gauchon 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).

  • Process for the radioactive decontamination of metal surfaces, particularly portions of primary circuits of water-cooled nuclear reactors
    Patent number: 5093072
    Abstract: Process for the radioactive decontamination of metal surfaces, particularly portions of the primary circuits of water-cooled nuclear reactors, characterized in that it comprises subjecting said surfaces to the successive stages of an oxidizing pretreatment with the aid of a solution of potassium permanganate KMnO.sub.4 and nitric acid, rinsing with demineralized water and then reducing treatment in a basic medium with the aid of a solution of alkali metal gluconate of formula HOH.sub.2 C--CHOH--CHOH--CHOH--CHOH--COOM, in which M is an alkali metal chosen from among Na and K, as well as soda NaOH.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: March 3, 1992
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Brunel Guy, Christine Chabrand, Jean P. Gauchon