Patents by Inventor Ronald R. Corns

Ronald R. Corns 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 degassing aluminum melts with sulfur hexafluoride
    Patent number: 4959101
    Abstract: Aluminum and aluminum alloy melts are purified by removing entrained gaseous impurities and solid particulate impurities, primarily aluminum oxides, by bubbling a non-corrosive intimate mixture of sulfur hexafluoride in an inert gas. Magnesium levels, if present, are not significantly reduced. The process is reliable and the gas mixture safe for aluminum purifying operations and procedures.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: September 25, 1990
    Assignee: AGA AB
    Inventors: James R. MacNeal, Timothy P. Rack, Ronald R. Corns