Patents by Inventor Ralph L. Cheek

Ralph L. Cheek 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).

  • Patent number: 4927459
    Abstract: Spent potlinings from aluminum reduction cells are fed to an aluminum reclamation furnace as a partial replacement for or supplement to the molten salt flux used in the reclamation process. This rids the spent potlinings of materials which would leach into soil or groundwater if the potlinings were otherwise disposed of at dumpsites, rendering them suitable for dumping with no hazard to the environment. Benefits to the reclamation process may be had at the same by substituting the less expensive potlinings for the salt flux materials and by using the fuel potential of the potlinings to reduce the external fuel requirement.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: May 22, 1990
    Assignee: Imco Recycling Inc.
    Inventors: Owen M. Gardner, Ralph L. Cheek