With Forwardly Extending Noncutting Portion Patents (Class 175/280)
  • Lockable reamer
    Patent number: 8973680
    Abstract: A downhole tool comprises a body, an extendable cutting member operable to cooperate with a hydraulically actuated cam member, and a cam member lock. The lock is configurable to be activated downhole to restrict movement of the cam member relative to the body and prevent extension of the cutting member.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: March 10, 2015
    Assignee: Nov Downhole Eurasia Limited
    Inventor: Alan MacKenzie
  • Apparatus and method for installing ground anchoring systems
    Patent number: 8950511
    Abstract: An apparatus and method for forming a borehole in an earthen formation includes a side cutting device comprised of a laterally extendable side cutting element that can be actuated from a retracted position to an extended position in which the side cutting element is selectively employed to create a larger borehole diameter in a down hole location than the remaining portion of the borehole that is closer to the borehole opening.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: February 10, 2015
    Inventor: Ben L. Seegmiller
  • Apparatus and method for installing ground anchoring systems
    Patent number: 8302706
    Abstract: An apparatus and method for forming a borehole in an earthen formation includes a side cutting device comprised of a laterally extendable side cutting element that can be actuated from a retracted position to an extended position in which the side cutting element is selectively employed to create a larger borehole diameter in a down hole location than the remaining portion of the borehole that is closer to the borehole opening.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: November 6, 2012
    Inventor: Ben L. Seegmiller