Patents by Inventor Johann Steyn

Johann Steyn 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).

  • Rock bolt
    Patent number: 8876436
    Abstract: A rock bolt includes an elongate tubular body with an internal bore. A filler material is insertable into the internal bore at one end of the elongated tubular body. The end of the tubular body is then deformed thereby using the filler material to seal the end of the bore. The filler material may be a non-metallic material, such as a tube of plastic.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 4, 2014
    Assignee: RSC Mining (Pty) Ltd.
    Inventor: Johann Steyn
  • Rock bolt
    Patent number: 8801336
    Abstract: A rock bolt includes an elongated tubular shank which has a defined outer diameter in which has a first end and a second end. A component is received on the first end of the elongate tubular shank and is fixed to the shank by welding. The component can be externally threaded and can be configured to be threadably engaged by a nut.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: August 12, 2014
    Assignee: RSC Mining (Pty) Ltd.
    Inventor: Johann Steyn
  • Rock bolt and rock bolt component
    Patent number: 8696249
    Abstract: A rock bolt component includes an elongate tubular section with an internal bore. A fixing member has an elongate body that includes a securing portion positionable in the internal bore of the tubular section and a coupling formation which projects from an opposite end of the fixing member. The fixing member is securable by deformation of an end of the tubular section, once the securing portion of the fixing member has been inserted into the end of the tubular section.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: April 15, 2014
    Assignee: RSC Mining (Pty) Ltd
    Inventor: Johann Steyn
  • ROCK BOLT
    Publication number: 20130156510
    Abstract: A rock bolt includes an elongate tubular body with an internal bore. A filler material is insertable into the internal bore at one end of the elongated tubular body. The end of the tubular body is then deformed thereby using the filler material to seal the end of the bore. The filler material may be a non-metallic material, such as a tube of plastic.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 20, 2013
    Inventor: Johann Steyn
  • ROCK BOLT AND ROCK BOLT COMPONENT
    Publication number: 20130149041
    Abstract: A rock bolt component includes an elongate tubular section with an internal bore. A fixing member has an elongate body that includes a securing portion positionable in the internal bore of the tubular section and a coupling formation which projects from an opposite end of the fixing member. The fixing member is securable by deformation of an end of the tubular section, once the securing portion of the fixing member has been inserted into the end of the tubular section.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 13, 2013
    Inventor: Johann Steyn
  • ROCK BOLT
    Publication number: 20130149042
    Abstract: A rock bolt includes an elongated tubular shank which has a defined outer diameter in which has a first end and a second end. A component is received on the first end of the elongate tubular shank and is fixed to the shank by welding. The component can be externally threaded and can be configured to be threadably engaged by a nut.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 13, 2013
    Inventor: Johann Steyn
  • GROUT DELIVERY SYSTEM FOR A ROCK BOLT
    Publication number: 20120177448
    Abstract: A grout delivery device which includes a body which defines an internal volume (18), opposing first (34) and second (26) apertures in the body, in communication with the volume, through which a rock support tendon (50) extends, and a grout formation (44) on the body for connection to a grout source.
    Type: Application
    Filed: June 15, 2009
    Publication date: July 12, 2012
    Applicant: Aveng (Africa) Limited
    Inventors: Johann Steyn, Michael Martin Charles Howell