Patents by Inventor Todd A. Weldon

Todd A. Weldon 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).

  • Method for recovery of gold and silver
    Patent number: 6679984
    Abstract: An apparatus and method utilizing a strip solution for removing gold from the loaded activated carbon used to accumulate such gold leached from gold bearing ore, and for electrically removing such gold from the strip solution by electrowinning. The apparatus includes a pair of strip columns fillable with loaded activated carbon. The strip columns are connectable individually and in series in respective continuous loops using a valved crossover pipe assembly to an electrowinning device, with the strip solution being pumped therethrough.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: January 20, 2004
    Assignee: Summit Valley Equipment & Engineering Corp.
    Inventors: Todd A. Weldon, Charles O. Gale
  • Apparatus and method for recovery of gold and silver from ore
    Publication number: 20020179451
    Abstract: An apparatus and method utilizing a strip solution for removing gold from the loaded activated carbon used to accumulate such gold leached from gold bearing ore, and for electrically removing such gold from the strip solution by electrowinning. The apparatus includes a pair of strip columns fillable with loaded activated carbon. The strip columns are connectable individually and in series in respective continuous loops using a valved crossover pipe assembly to an electrowinning device, with the strip solution being pumped therethrough.
    Type: Application
    Filed: April 20, 2001
    Publication date: December 5, 2002
    Inventors: Todd A. Weldon, Charles O. Gale