Patents by Inventor Cornelius Adriaan NIEUWENHUIS

Cornelius Adriaan NIEUWENHUIS 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).

  • Adapted rock bolt with improved installation properties
    Patent number: 10858937
    Abstract: Disclosed is a grout anchored rock bolt which includes an elongate cylindrical body of a suitable material which has at least one integral anchor portion which includes of a plurality projection, each of which extends laterally from the body in at least one radial direction, wherein the projections are consecutively serially arranged along the length of the anchor portion and wherein each projection is radially offset relatively to the preceding formation at an angle that is not orthogonal.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: December 8, 2020
    Assignee: EPIROC DRILLING TOOLS AB
    Inventors: Brendan Robert Crompton, Cornelius Adriaan Nieuwenhuis, James William Sheppard, Henri Visser
  • ADAPTED ROCK BOLT WITH IMPROVED INSTALLATION PROPERTIES
    Publication number: 20200157939
    Abstract: Disclosed is a grout anchored rock bolt which includes an elongate cylindrical body of a suitable material which has at least one integral anchor portion which includes of a plurality projection, each of which extends laterally from the body in at least one radial direction, wherein the projections are consecutively serially arranged along the length of the anchor portion and wherein each projection is radially offset relatively to the preceding formation at an angle that is not orthogonal.
    Type: Application
    Filed: September 14, 2017
    Publication date: May 21, 2020
    Inventors: Brendan Robert CROMPTON, Cornelius Adriaan NIEUWENHUIS, James William SHEPPARD, Henri VISSER