Patents by Inventor Kent Evermark

Kent Evermark 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).

  • Method of disconnecting a drill string at a drill rig
    Patent number: 10167688
    Abstract: A method and apparatus for disconnecting an end rod from a drill string coupled together by a threaded connection is provided. A rod handling apparatus includes a gripper unit having a floating sled with a sensor unit configured to monitor relative axial position of the sled relative to a frame of the gripper unit to determine a decoupling of the threaded connection and a separation of an end rod from the drill string.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: January 1, 2019
    Assignee: SANDVIK INTELLECTIAL PROPERTY AB
    Inventors: Johan Jelgert, Lars-Erik Larsson, Per Vilen, Kent Evermark
  • Method of interconnecting a drill rod with a drill string by means of a threaded connection, rod handling system and drill rig
    Patent number: 9745805
    Abstract: A method of interconnecting a drill rod with a drill string by a threaded connection is disclosed. The method includes axially aligning the drill rod with the drill string, rotating the drill rod in a disengagement rotational direction of the threaded connection, identifying a rotational position of the drill rod where thread ends of the rod and the drill string slip over each other, stopping the rotating within a predetermined period of identifying the rotational position, and rotating the drill rod in an engagement direction, such that the drill rod is interconnected with the drill string by the threaded connection.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 29, 2017
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Kent Evermark, Peter Rosmark, Per Vilen
  • Drilling rig rod handling apparatus
    Patent number: 9650849
    Abstract: A drill rod handling apparatus is configured to feed rods to and from a drill string created by a drill rig. The apparatus includes a gripper unit configured to contact and hold a rod to be transported to the drill rig and an alignment tool mounted at the gripper unit to provide correct mating of the rod ends during coupling.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: May 16, 2017
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Johan Jelgert, Lars-Erik Larsson, Per Vilen, Kent Evermark
  • DRILLING RIG ROD HANDLING APPARATUS
    Publication number: 20160115751
    Abstract: A drill rod handling apparatus is configured to feed rods to and from a drill string created by a drill rig. The apparatus includes a gripper unit configured to contact and hold a rod to be transported to the drill rig and an alignment tool mounted at the gripper unit to provide correct mating of the rod ends during coupling.
    Type: Application
    Filed: April 9, 2014
    Publication date: April 28, 2016
    Inventors: Johan JELGERT, Lars-Erik LARSSON, Per VILEN, Kent EVERMARK
  • METHOD OF DISCONNECTING A DRILL STRING AT A DRILL RIG
    Publication number: 20160097245
    Abstract: A method and apparatus for disconnecting an end rod from a drill string coupled together by a threaded connection is provided. A rod handling apparatus includes a gripper unit having a floating sled with a sensor unit configured to monitor relative axial position of the sled relative to a frame of the gripper unit to determine a decoupling of the threaded connection and a separation of an end rod from the drill string.
    Type: Application
    Filed: April 9, 2014
    Publication date: April 7, 2016
    Inventors: Johan JELGERT, Lars-Erik LARSSON, Per VILEN, Kent EVERMARK
  • METHOD OF INTERCONNECTING A DRILL ROD WITH A DRILL STRING BY MEANS OF A THREADED CONNECTION, ROD HANDLING SYSTEM AND DRILL RIG
    Publication number: 20150211310
    Abstract: A method of interconnecting a drill rod with a drill string by a threaded connection is disclosed. The method includes axially aligning the drill rod with the drill string, rotating the drill rod in a disengagement rotational direction of the threaded connection, identifying a rotational position of the drill rod where thread ends of the rod and the drill string slip over each other, stopping the rotating within a predetermined period of identifying the rotational position, and rotating the drill rod in an engagement direction, such that the drill rod is interconnected with the drill string by the threaded connection.
    Type: Application
    Filed: September 6, 2013
    Publication date: July 30, 2015
    Inventors: Kent Evermark, Peter Rosmark, Per Vilen