Patents by Inventor Anthony F. Harding

Anthony F. Harding 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).

  • Column flotation cell for enhanced recovery of minerals such as phosphates by froth flotation
    Patent number: 8231008
    Abstract: An apparatus for separating a mineral from a slurry of mineral and impurities, including a fluid vessel having a first, open end and a second end and a feed well disposed near the first end. The feed well has a first, open end, for receiving the slurry, and a second end. At least one first member is received through the first ends of the vessel and the feed well for providing aerated water, creating a froth in the feed well including substantially the mineral. The mineral froth substantially separates from the impurities and floats out of the feed well towards the first end of the vessel, and a collection unit receives the mineral froth. The impurities and any remaining mineral fall toward the second end of the vessel. A measurement unit is placed within the vessel for measuring at least one of density and pressure of the fluid in the vessel.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: July 31, 2012
    Assignee: MOS Holdings Inc.
    Inventors: Stanley A. Patterson, David R. Spedden, Anthony F. Harding, David Kennedy
  • COLUMN FLOTATION CELL FOR ENHANCED RECOVERY OF MINERALS SUCH AS PHOSPHATES BY FROTH FLOTATION
    Publication number: 20090145821
    Abstract: An apparatus for separating a mineral from a slurry of mineral and impurities, including a fluid vessel having a first, open end and a second end and a feed well disposed near the first end. The feed well has a first, open end, for receiving the slurry, and a second end. At least one first member is received through the first ends of the vessel and the feed well for providing aerated water, creating a froth in the feed well including substantially the mineral. The mineral froth substantially separates from the impurities and floats out of the feed well towards the first end of the vessel, and a collection unit receives the mineral froth. The impurities and any remaining mineral fall toward the second end of the vessel. A measurement unit is placed within the vessel for measuring at least one of density and pressure of the fluid in the vessel.
    Type: Application
    Filed: February 12, 2009
    Publication date: June 11, 2009
    Inventors: Stanley A. Patterson, David R. Spedden, Anthony F. Harding, David Kennedy
  • Column flotation cell for enhanced recovery of minerals such as phosphates by froth flotation
    Patent number: 7510083
    Abstract: An apparatus for separating a mineral from a slurry of mineral and impurities, including a fluid vessel having a first, open end and a second end and a feed well disposed near the first end. The feed well has a first, open end, for receiving the slurry, and a second end. At least one first member is received through the first ends of the vessel and the feed well for providing aerated water, creating a froth in the feed well including substantially the mineral. The mineral froth substantially separates from the impurities and floats out of the feed well towards the first end of the vessel, and a collection unit receives the mineral froth. The impurities and any remaining mineral fall toward the second end of the vessel. A measurement unit is placed within the vessel for measuring at least one of density and pressure of the fluid in the vessel.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: March 31, 2009
    Assignee: The Mosaic Company
    Inventors: Stanley A. Patterson, David R. Spedden, Anthony F. Harding, David Kennedy