Patents by Inventor Krister B ERIKSSON

Krister B ERIKSSON 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).

  • Drill rod gripping apparatus
    Patent number: 9745806
    Abstract: A drill rod gripping apparatus to grip and impart rotational motion to a drill rod including a sled axially mounted at a frame and having first and second jaws moveably mounted at the sled to allow a substantially linear lateral movement across the sled to and from one another. A plurality of rod engagers are mounted at each jaw with at least one of the engagers including an abrasive surface formed from a coating to increase the frictional force between the drill rod and the gripping apparatus.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: August 29, 2017
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Johan Jelgert, Lars-Erik Larsson, Krister B Eriksson, Ola Fredin
  • DRILL ROD GRIPPING APPARATUS
    Publication number: 20160115750
    Abstract: A drill rod gripping apparatus to grip and impart rotational motion to a drill rod including a sled axially mounted at a frame and having first and second jaws moveably mounted at the sled to allow a substantially linear lateral movement across the sled to and from one another. A plurality of rod engagers are mounted at each jaw with at least one of the engagers including an abrasive surface formed from a coating to increase the frictional force between the drill rod and the gripping apparatus.
    Type: Application
    Filed: April 9, 2014
    Publication date: April 28, 2016
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Johan JELGERT, Lars-Erik LARSSON, Krister B ERIKSSON, Ola FREDIN