Patents by Inventor Duncan Turner

Duncan Turner 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).

  • Leaching of minerals
    Patent number: 10190193
    Abstract: A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of P80 of less than 25 ?m and leaching the mineral composition in the presence of lime and/or limestone and a soluble alkali complexing agent and in the presence of an oxygen containing gas at a pH in the range of from 3.5 to 6.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 29, 2019
    Assignee: GLENCORE TECHNOLOGY PTY LTD
    Inventors: Michael Matthew Hourn, Daniel Mallah, Paul Voigt, Duncan Turner
  • Leaching of Minerals
    Publication number: 20160258038
    Abstract: A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of P80 of less than 25 ?m and leaching the mineral composition in the presence of lime and/or limestone and a soluble alkali complexing agent and in the presence of an oxygen containing gas at a pH in the range of from 3.5 to 6.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 8, 2016
    Inventors: Michael Matthew Hourn, Daniel Mallah, Paul Voigt, Duncan Turner
  • ARTICULATED MASSAGE DEVICE
    Publication number: 20120330201
    Abstract: A massaging device having a plurality of members that are linked together such that the shape and orientation of the massaging device can be selectively changed to a desired configuration.
    Type: Application
    Filed: July 13, 2010
    Publication date: December 27, 2012
    Inventors: Duncan Turner, Christopher Glaister
  • Method of producing zinc oxide powder
    Patent number: 7939037
    Abstract: Method for producing hydrometallurgical zinc oxide powder having characteristics equivalent to that derived from a French process, comprising formation of an aqueous pulp from a starting zinc oxide having particles of nodular structure, wet milling of this aqueous pulp, separation in this milled pulp between a liquid phase and a solid phase containing the zinc oxide, and drying of said solid phase, coupled with a mechanical deagglomeration of the particles during drying, to obtain a dry zinc oxide powder with particles of nodular structure having a particle size distribution where the particles have an average size (d50) between 0.02 and 20 ?m.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: May 10, 2011
    Assignee: Zincox Resources PLC
    Inventors: Kevin Clais, Duncan Turner, Philippe Leblanc, Antoine Masse
  • METOHD OF PRODUCING OXIDE AND POWER THUS OBTAINED
    Publication number: 20100086455
    Abstract: Method for producing hydrometallurgical zinc oxide powder having characteristics equivalent to that derived from a French process, comprising formation of an aqueous pulp from a starting zinc oxide having particles of nodular structure, wet milling of this aqueous pulp, separation in this milled pulp between a liquid phase and a solid phase containing the zinc oxide, and drying of said solid phase, coupled with a mechanical deagglomeration of the particles during drying, to obtain a dry zinc oxide powder with particles of nodular structure having a particle size distribution where the particles have an average size (d50) between 0.02 and 20 ?m.
    Type: Application
    Filed: May 6, 2008
    Publication date: April 8, 2010
    Inventors: Kevin Clais, Duncan Turner, Philippe Leblanc, Antoine Masse
  • Body Massager with Learning Capability
    Publication number: 20080200849
    Abstract: A body massager comprises a housing having a membrane attached thereto. A ball is moveably retained within a cup, the ball engaging with and moveable along an inner surface of the membrane. A drive means drives the cup and ball across the inner surface of the membrane.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 21, 2008
    Inventors: Geoffrey Hollington, Duncan Turner, Christopher Glaister