Patents by Inventor Andrew John Portsmouth

Andrew John Portsmouth 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).

  • Gemstone sorting
    Patent number: 11541429
    Abstract: There is disclosed an apparatus and method for sorting gemstones from a batch of gemstones. The apparatus comprises one or more measurement locations, each comprising at least one measurement device configured to measure one or more properties of a gemstone. A continuously moveable surface supports the gemstones thereon and transports the gemstones to the one or more measurement locations. A separation device separates the gemstones from one another as they are transported on the moveable surface to the one or more measurement locations. A location trigger at a sensor location comprises a sensor for identifying when the gemstone passes through the sensor location.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: January 3, 2023
    Assignee: De Beers UK Ltd
    Inventors: Andrew John Portsmouth, Colin McGuinness, Nicholas Matthew Davies, David Fisher
  • GEMSTONE SORTING
    Publication number: 20200094289
    Abstract: There is disclosed an apparatus and method for sorting gemstones from a batch of gemstones. The apparatus comprises one or more measurement locations, each comprising at least one measurement device configured to measure one or more properties of a gemstone. A continuously moveable surface supports the gemstones thereon and transports the gemstones to the one or more measurement locations. A separation device separates the gemstones from one another as they are transported on the moveable surface to the one or more measurement locations. A location trigger at a sensor location comprises a sensor for identifying when the gemstone passes through the sensor location.
    Type: Application
    Filed: December 21, 2017
    Publication date: March 26, 2020
    Inventors: Andrew John Portsmouth, Colin McGuinness, Nicholas Matthew Davies, David Fisher