Patents by Inventor Johannes Christianus JOZEF HEEMSKERK

Johannes Christianus JOZEF HEEMSKERK 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).

  • Jacket leg cutting tool
    Patent number: 10994350
    Abstract: A cutting system is used for cutting a hollow cylindrical support beam which forms part of a support structure of a sea platform. The cutting system comprises a fixating device to fixate the cutting system in an operation position around an outer wall of the support beam, and a drilling device to drill a series of through holes in the outer wall and around the support beam. The drilling device is movable along a drill track and around the support beam by a drill driver.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 4, 2021
    Assignee: Heerema Marine Contractors Nederland SE
    Inventors: Gerardus Cornelius Van Grieken, Johannes Christianus Jozef Heemskerk
  • JACKET LEG CUTTING TOOL
    Publication number: 20180318945
    Abstract: A cutting system is used for cutting a hollow cylindrical support beam which forms part of a support structure of a sea platform. The cutting system comprises a fixating device to fixate the cutting system in an operation position around an outer wall of the support beam, and a drilling device to drill a series of through holes in the outer wall and around the support beam. The drilling device is movable along a drill track and around the support beam by a drill driver.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 8, 2018
    Inventors: Gerardus Cornelius VAN GRIEKEN, Johannes Christianus JOZEF HEEMSKERK