Patents by Inventor Peter Duncan FRASER

Peter Duncan FRASER 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).

  • Transport and hoisting of slurry
    Patent number: 11597613
    Abstract: A feeder arrangement for a slurry transport system, which is preferably a hydro hoist, includes a chamber with a high pressure water inlet, a low pressure water outlet, and a low pressure solids inlet at a top end. The low pressure solids inlet has a transfer chute that opens into a lower section of the chamber to maintain a clear-water environment adjacent the top end. A high pressure solids and water outlet is provided at a bottom end. The inlets and outlets are controlled by suitable valves. Three such chambers are preferably operated together in sequence between incoming and outgoing columns in a mine.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: March 7, 2023
    Assignee: HYDRO POWER EQUIPMENT (PTY) LTD.
    Inventor: Peter Duncan Fraser
  • TRANSPORT AND HOISTING OF SLURRY
    Publication number: 20210371216
    Abstract: A feeder arrangement for a slurry transport system, which is preferably a hydro hoist, includes a chamber with a high pressure water inlet, a low pressure water outlet, and a low pressure solids inlet at a top end. The low pressure solids inlet has a transfer chute that opens into a lower section of the chamber to maintain a clear-water environment adjacent the top end. A high pressure solids and water outlet is provided at a bottom end. The inlets and outlets are controlled by suitable valves. Three such chambers are preferably operated together in sequence between incoming and outgoing columns in a mine.
    Type: Application
    Filed: September 2, 2019
    Publication date: December 2, 2021
    Inventor: Peter Duncan FRASER