Patents by Inventor Mark DOCHERTY

Mark DOCHERTY 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).

  • DUAL SPEED LINEAR ACTUATOR ASSEMBLY
    Publication number: 20240110449
    Abstract: A linear actuator assembly that can include a drive shaft, and a piston, where rotation of the drive shaft extends or retracts the piston at a speed that automatically changes based on an opposing force applied to the piston. A system that can include a piece of rig equipment configured to engage an object, with one or more linear actuator assemblies incorporated into the piece of rig equipment, where the linear actuator assemblies selectively engage the object and each of the linear actuator assemblies can include a drive shaft, and a piston, and where rotation of the drive shaft extends or retracts the piston at a speed that automatically changes based on an opposing force applied to the piston.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 4, 2024
    Inventors: Christopher MAGNUSON, Mark DOCHERTY, Vladimir SCEKIC, Predrag RADOVANOVIC, Dejan PAVLOVIC
  • Systems and methods for monitoring drill strings
    Patent number: 11277573
    Abstract: A system for monitoring a drill string comprising: a plurality of image capture devices disposed around a wellbore and adapted to record images of a portion of the drill string; and a logic device adapted to determine linearity of the portion of the drill string based on a form factor deviation. A method of monitoring a drill string comprising: capturing images of a portion of the drill string with an image capture device; assessing a form factor deviation of the portion of the drill string; and determining a linearity of the portion of the drill string based on the form factor deviation.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: March 15, 2022
    Assignee: Nabors Drilling Technologies USA, Inc.
    Inventors: Christopher Magnuson, Mark Docherty
  • SYSTEMS AND METHODS FOR MONITORING DRILL STRINGS
    Publication number: 20200186726
    Abstract: A system for monitoring a drill string comprising: a plurality of image capture devices disposed around a wellbore and adapted to record images of a portion of the drill string; and a logic device adapted to determine linearity of the portion of the drill string based on a form factor deviation. A method of monitoring a drill string comprising: capturing images of a portion of the drill string with an image capture device; assessing a form factor deviation of the portion of the drill string; and determining a linearity of the portion of the drill string based on the form factor deviation.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Christopher MAGNUSON, Mark DOCHERTY