Patents by Inventor Ernest R. Ground

Ernest R. Ground 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).

  • Mineral ore pellets
    Patent number: 4199348
    Abstract: Mineral ore pellets substantially devoid of water are disclosed which contain particles of mineral ore and an alkali metal carbonate. A method for making such pellets is also disclosed which includes mixing particulate mineral ore with an alkali metal carbonate and water to form a plastic mass, forming the plastic mass into pellets, and heating the pellets to drive off the water and provide relatively hard, moisture resistant pellets.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: April 22, 1980
    Assignee: International Minerals & Chemical Corporation
    Inventor: Ernest R. Ground
  • Beneficiation of fluorspar ore
    Patent number: 4043455
    Abstract: A method is disclosed for beneficiating a fluorspar concentrate containing apatite as a gangue mineral, which includes further concentrating the fluorspar by a froth flotation process wherein the apatite is collected and floated with a cationic reagent in an acid flotation circuit and the fluorspar is depressed with fluoride ions.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: August 23, 1977
    Assignee: International Minerals & Chemical Corporation
    Inventor: Ernest R. Ground