Patents by Inventor William John MCCALLUM

William John MCCALLUM 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).

  • Measurement apparatus for measuring a volume of a desired solid component in a sample volume of a solid-liquid slurry
    Patent number: 11118243
    Abstract: The invention discloses a measurement apparatus for measuring a volume of a desired solid component in a sample volume of a solid-liquid slurry. The sample volume of the slurry is received into a receptacle and screened to separate out the desired solid component from a remainder of the slurry, whereby the solid component is retained in the receptacle to form a bed therein and the remainder is exhausted. The height of the bed is subsequently measured by a laser being adapted to emit a laser beam into the receptacle, thereby enabling a determination of a volume and/or mass of the solid component retained in the receptacle. The invention further discloses a control system for a leaching plant utilising the measurement apparatus.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: September 14, 2021
    Inventors: Teresa Diane Hayward McGrath, Mark Robert Hubble, William John McCallum, William Patrick Staunton
  • Measurement Apparatus for Measuring a Volume of a Desired Solid Component in a Sample Volume of a Solid-Liquid Slurry
    Publication number: 20180223389
    Abstract: The invention discloses a measurement apparatus for measuring a volume of a desired solid component in a sample volume of a solid-liquid slurry. The sample volume of the slurry is received into a receptacle and screened to separate out the desired solid component from a remainder of the slurry, whereby the solid component is retained in the receptacle to form a bed therein and the remainder is exhausted. The height of the bed is subsequently measured by a laser being adapted to emit a laser beam into the receptacle, thereby enabling a determination of a volume and/or mass of the solid component retained in the receptacle. The invention further discloses a control system for a leaching plant utilising the measurement apparatus.
    Type: Application
    Filed: July 13, 2015
    Publication date: August 9, 2018
    Inventors: Teresa Diane Hayward MCGRATH, Mark Robert HUBBLE, William John MCCALLUM, William Patrick STAUNTON