Patents by Inventor Andre DEMERS

Andre DEMERS 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).

  • Methods for measuring properties of rock pieces
    Patent number: 11204241
    Abstract: Provided herein is a method for measuring the size distribution and/or hardness of free falling rock pieces. The method comprises projecting at least one laser line on the falling rock pieces by a laser device; capturing images of the falling rock pieces at an angle from the at least one laser line by at least one camera; and obtaining size distribution data of the falling rock pieces based on data obtained from a topographical map generated from the captured images. Certain embodiments further comprise: obtaining at least one of the volume and area of individual rock pieces from the topographical map; conducting a data analysis on at least one of the volume and area measurements of the rock pieces to reduce at least one of sampling and measurement errors; determining the size distribution of the falling rock pieces based on the data analysis and, optionally, evaluating a rock hardness index for the rock.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: December 21, 2021
    Assignees: Her Majesty The Queen in Right of Canada as Represented by the Minister of Natural Resources Canada, Institut National d'Optique/National Optics Institute
    Inventors: Magella Bilodeau, Andre Demers, Daniel Lefebvre, Sebastien Roy
  • Methods for Measuring Properties of Rock Pieces
    Publication number: 20200041264
    Abstract: Provided herein is a method for measuring the size distribution and/or hardness of free falling rock pieces. The method comprises projecting at least one laser line on the falling rock pieces by a laser device; capturing images of the falling rock pieces at an angle from the at least one laser line by at least one camera; and obtaining size distribution data of the falling rock pieces based on data obtained from a topographical map generated from the captured images. Certain embodiments further comprise: obtaining at least one of the volume and area of individual rock pieces from the topographical map; conducting a data analysis on at least one of the volume and area measurements of the rock pieces to reduce at least one of sampling and measurement errors; determining the size distribution of the falling rock pieces based on the data analysis and, optionally, evaluating a rock hardness index for the rock.
    Type: Application
    Filed: February 15, 2018
    Publication date: February 6, 2020
    Inventors: Magella BILODEAU, Andre DEMERS, Daniel LEFEBVRE, Sebastien ROY