Patents by Inventor Charles Edward O'Neill

Charles Edward O'Neill 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).

  • Reductive leaching of limonitic ores with hydrogen sulfide
    Patent number: 4062924
    Abstract: A process is provided for extracting iron values as soluble ferrous salts from a limonitic ore which comprises leaching the ore in an acidic medium in the presence of a reducing agent, the reducing agent being a sulfide. Non-ferrous metal values are also extracted from the ore and they may be selectively separated from the solubilized iron salts.
    Type: Grant
    Filed: May 19, 1976
    Date of Patent: December 13, 1977
    Assignee: The International Nickel Company, Inc.
    Inventors: Gerald Vernon Glaum, Charles Edward O'Neill, Kohur Nagaraja Subramanian
  • Non-contaminating anode suitable for electrowinning applications
    Patent number: 4051000
    Abstract: A non-contaminating electrode is provided suitable as an insoluble anode for the electrowinning of metals from an electrolyte solution, said electrode comprising a metal substrate formed of a metal selected from the group consisting of titanium, zirconium, tantalum and alloys thereof, said metal substrate having a flash metal coating of a platinum-group metal thereon, which coating in turn is covered by an intermediate adherent layer of lead dioxide, said lead dioxide layer in turn having an adherent overlayer of manganese dioxide.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: September 27, 1977
    Assignee: The International Nickel Company, Inc.
    Inventors: Aubrey Stewart Gendron, Shinichiro Abe, Victor Alexander Ettel, Charles Edward O'Neill