Patents by Inventor Kevin Kropf

Kevin Kropf 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).

  • Controlling froth flotation
    Patent number: 9764258
    Abstract: A method of controlling a froth flotation cell in a froth flotation circuit for separating substances comprises periodically carrying out a control routine to maximize froth stability during the operation of the cell. The control routine comprises changing the gas flow rate to the cell in a series of steps and assessing the froth stability at each gas flow rate and continuing the step changes in the gas flow rate until the froth stability is a peak froth stability or is within a predetermined range of the peak froth stability of the cell.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: September 19, 2017
    Assignee: Technological Resources Pty. Limited
    Inventors: Grant Ashley Wellwood, Damien Harding, Andrew Thornton, Bruce Northway, Kevin Kropf
  • CONTROLLING FROTH FLOTATION
    Publication number: 20130306571
    Abstract: A method of controlling a froth flotation cell in a froth flotation circuit for separating substances comprises periodically carrying out a control routine to maximise froth stability during the operation of the cell. The control routine comprises changing the gas flow rate to the cell in a series of steps and assessing the froth stability at each gas flow rate and continuing the step changes in the gas flow rate until the froth stability is a peak froth stability or is within a predetermined range of the peak froth stability of the cell.
    Type: Application
    Filed: November 16, 2011
    Publication date: November 21, 2013
    Applicant: TECHNOLOGICAL RESOURCES PTY. LIMITED
    Inventors: Grant Ashley Wellwood, Damien Harding, Andrew Thorntan, Bruce Northway, Kevin Kropf