Patents by Inventor E. Kent Tolman

E. Kent Tolman 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).

  • Patent number: 9057227
    Abstract: Pipe handling apparatus and methods intended to facilitate the transportation of pipe between a rig floor and a rack of pipe. The pipe handling apparatus comprise in general a loading mechanism, which transports pipe between the pipe handler and a rig, and a racking mechanism, which transport pipe between a rack and the loader. The racking mechanism is adapted to selectively transport pipe from and deliver it to various levels in a rack of pipe. The racker comprises a pair of elevators, each of which has a pipe rest which is moveable between a hold position, in which pipe may be received therein and is restricted from rolling out of the pipe rest, and a release position, in which release position pipe may roll out of the pipe rest.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: June 16, 2015
    Assignee: Key Energy Services, LLC
    Inventors: E. Kent Tolman, Troy Dean Walton
  • Publication number: 20130266404
    Abstract: Pipe handling apparatus and methods intended to facilitate the transportation of pipe between a rig floor and a rack of pipe. The pipe handling apparatus comprise in general a loading mechanism, which transports pipe between the pipe handler and a rig, and a racking mechanism, which transport pipe between a rack and the loader. The racking mechanism is adapted to selectively transport pipe from and deliver it to various levels in a rack of pipe. The racker comprises a pair of elevators, each of which has a pipe rest which is moveable between a hold position, in which pipe may be received therein and is restricted from rolling out of the pipe rest, and a release position, in which release position pipe may roll out of the pipe rest.
    Type: Application
    Filed: March 9, 2013
    Publication date: October 10, 2013
    Applicant: Key Energy Services, LLC
    Inventors: E. Kent Tolman, Troy Dean Walton
  • Publication number: 20040197166
    Abstract: A pipe handling apparatus for transporting pipe between a position adjacent a pipe storage rack and a rig floor elevated above the pipe storage rack is provided. The pipe handling apparatus includes a support frame, substantially horizontally disposed platform supported by the support frame having a pipe receiving groove formed therein for receiving the joint of pipe, a carriage member, and a pusher member. The carriage member is movable from a lowered position wherein the joint of pipe which is positioned in the pipe receiving groove of the platform is supported in a substantially horizontal position and a raised position wherein the carriage member supports a first end of the joint of pipe at an elevated position relative to an opposed second end of the joint of pipe. The pusher member is movable along the pipe receiving groove between a retracted position and an extended position.
    Type: Application
    Filed: April 6, 2004
    Publication date: October 7, 2004
    Inventors: E. Kent Tolman, Ronald D. Jones