Patents by Inventor Gary P. Van Tighem

Gary P. Van Tighem 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).

  • Flotation separation of glass from a mixture of comminuted inorganic materials using hydrocarbon sulfonates
    Patent number: 4213851
    Abstract: Particulate glass values contained in the final inorganic fraction from comminuted municipal wastes and having the particle size below 10 mesh, preferably between about 325 to about 20 mesh, are recovered by froth flotation by activating the glass surface with a bi or trivalent metal ion and using as the beneficiation reagent a water compatible sulfonated hydrocarbon.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: July 22, 1980
    Assignee: Occidental Petroleum Corporation
    Inventors: William R. White, Gary P. Van Tighem
  • Flotation separation of glass from a mixture of comminuted inorganic materials using hydrocarbon sulfonates
    Patent number: 4122950
    Abstract: Particulate glass values contained in the final inorganic fraction from comminuted municipal wastes and having the particle size between about 200 to about 20 mesh are recovered by froth flotation by activating the glass surface with a bi or trivalent metal ion and using as the beneficiation reagent a water compatible sulfonated hydrocarbon.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: October 31, 1978
    Assignee: Occidental Petroleum Corporation
    Inventors: William R. White, Gary P. Van Tighem