Patents by Inventor Daniel Charles Curry

Daniel Charles Curry 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).

  • Method for increasing efficiency of grinding of ores, minerals and concentrates
    Patent number: 7931218
    Abstract: A method for reducing particle size of a particulate comprising feeding a feed material to a grinding mill having a power of at least 500 kW, the mill having a specific power draw of at least 50 kW per cubic meter of grinding volume of the mill and the grinding mill including a grinding media comprising particulate material having a specific gravity of not less than 2.4 tons/m3 and a particle size falling in the range of from about 0.8 to 8 mm, grinding the feed material in the grinding mill and removing a product from the grinding mill, the product having a particle size range such that D80 of the product is at least about 20 microns.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: April 26, 2011
    Assignee: Xstrata Technology Pty Ltd
    Inventors: Gregory Stephen Anderson, Daniel Charles Curry, Joseph Damian Pease
  • Method for Increasing Efficiency of Grinding of Ores, Minerals and Concentrates
    Publication number: 20090188998
    Abstract: A method for reducing particle size of a particulate comprising feeding a feed material to a grinding mill having a power of at least 500 kW, the mill having a specific power draw of at least 50 kW per cubic metre of grinding volume of the mill and the grinding mill including a grinding media comprising particulate material having a specific gravity of not less than 2.4 tonnes/m3 and a particle size falling in the range of from about 0.8 to 8 mm, grinding the feed material in the grinding mill and removing a product from the grinding mill, the product having a particle size range such that D80 of the product is at least about 20 microns.
    Type: Application
    Filed: August 8, 2006
    Publication date: July 30, 2009
    Inventors: Gregory Stephen Anderson, Daniel Charles Curry, Joseph Damian Pease