Patents by Inventor Daniel Gerhardus Hattingh

Daniel Gerhardus Hattingh 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).

  • Friction Welding Apparatus
    Publication number: 20110198389
    Abstract: This invention relates to a friction welding apparatus, and more particularly, but not exclusively, to a modular friction welding apparatus suitable for in-situ reparation of blind holes in pipes. The friction welding apparatus includes a frame assembly, a spindle assembly for holding a friction welding consumable; and a drive assembly for driving a spindle of the spindle assembly. The spindle assembly and the drive assembly are releasably securable to the frame assembly so as to form a modular friction welding apparatus, and the frame assembly is furthermore removable securable to an object to be welded.
    Type: Application
    Filed: May 29, 2009
    Publication date: August 18, 2011
    Applicant: NELSON MANDELA METROPOLITAN UNIVERSITY
    Inventors: Daniel Gerhardus Hattingh, Ian Norman Wedderburn, Philip Doubell