Patents by Inventor Daniel A. Mackie

Daniel A. Mackie 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).

  • Apparatus for beneficiating ores
    Patent number: 5295665
    Abstract: A method and apparatus for treating mineral-bearing ores and, more particularly, for treating particulate ores containing precious metals, base metals and the like for separating and recovering said values by classifying the particulate ore on a bed of particulate material, preferably coarse particulate material, and by continuously chemically leaching the said values from the ore. In accordance with an embodiment of the invention, particulated ore is fluidized and intermittently moved through a tank to classify the ore particles into strata according to size, shape and density to beneficiate values, either heavier or lighter than the gangue, for recovery of concentrated values.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: March 22, 1994
    Inventor: Daniel A. Mackie
  • Method and apparatus for beneficiating ores
    Patent number: 5096678
    Abstract: A method and apparatus for treating mineral-bearing ores and, more particularly, for treating ores containing precious metals, base metals and the like values by providing a means to extract the metal or other values from a particulated ore by classifying the ore to separate values from the gangue, and by continuously chemically leaching the said values from the ore. In accordance with an embodiment of the invention, particulated ore is fluidized and intermittently moved through a tank to classify the ore particles into strata according to size, shape and density to beneficiate values, either heavier or lighter than the gangue, for recovery of concentrated values.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: March 17, 1992
    Inventor: Daniel A. Mackie
  • Apparatus for beneficiating ores
    Patent number: 4991824
    Abstract: A method and apparatus for treating mineral-bearing ores and, more particularly, for treating ores containing precious metals, base metals and the like values by providing a means to extract the metal or other values from a particulated ore by classifying the ore to separate values from the gangue, and by continuously chemically leaching the said values from the ore. In accordance with an embodiment of the invention, particulated ore is fluidized and intermittently moved through a tank to classify the ore particles into strata according to size, shape and density to beneficiate values, either heavier or lighter than the gangue, for recovery of concentrated values.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: February 12, 1991
    Inventor: Daniel A. Mackie