Patents Assigned to JTB TOOLS & OILFIELD SERVICES, LLC
  • Patent number: 8939218
    Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: January 27, 2015
    Assignee: JTB Tools & Oilfield Services, LLC
    Inventors: Barry Marshall, Gary Marshall
  • Patent number: 8936096
    Abstract: A method for removing a rubber element of a rotary control device includes closing an upper pulling ring around the rubber element, closing a lower stabilizing ring around a drill pipe stump, suspending the lower ring by a chain from the upper ring, connecting a hoist to the upper pulling ring, said lifting the drill stem until the chain tightens and the drill stem is pulled up through the rubber element so as to leave the rubber element free. The hoist is connected to a chain sling affixed to the upper pulling ring. The rubber element can then be released from the upper pulling ring.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 20, 2015
    Assignee: JTB Tools & Oilfield Services, LLC
    Inventor: Barry Marshall
  • Patent number: 8881801
    Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: November 11, 2014
    Assignee: JTB Tools & Oilfield Services, LLC
    Inventors: Barry Marshall, Gary Marshall
  • Publication number: 20140291027
    Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.
    Type: Application
    Filed: May 5, 2014
    Publication date: October 2, 2014
    Applicant: JTB TOOLS & OILFIELD SERVICES, LLC
    Inventors: Barry MARSHALL, Gary MARSHALL
  • Publication number: 20140291026
    Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: JTB TOOLS & OILFIELD SERVICES, LLC
    Inventors: Barry Marshall, Gary Marshall