Patents by Inventor Robert Donnally

Robert Donnally 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: 11795766
    Abstract: A lubricator assembly for servicing a tubular member includes a mounting base, a lubricant housing movably coupled to the mounting base and configured to receive lubricant from a lubricant source, a guide pin slidably disposed in the lubricant housing, a first seal positioned between the guide pin and the lubricant housing and a second seal positioned between the guide pin and the lubricant housing, and a first chamber extending between the first seal and the second seal, wherein the guide pin is configured to direct lubricant disposed in the first chamber against the tubular member in response to the tubular member engaging the guide pin.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: October 24, 2023
    Assignee: National Oilwell Varco, L.P.
    Inventors: Andrew McKenzie, Robert Donnally, Lei Cheng, George Wu, Leo Yang
  • Publication number: 20220003048
    Abstract: A lubricator assembly for servicing a tubular member includes a mounting base, a lubricant housing movably coupled to the mounting base and configured to receive lubricant from a lubricant source, a guide pin slidably disposed in the lubricant housing, a first seal positioned between the guide pin and the lubricant housing and a second seal positioned between the guide pin and the lubricant housing, and a first chamber extending between the first seal and the second seal, wherein the guide pin is configured to direct lubricant disposed in the first chamber against the tubular member in response to the tubular member engaging the guide pin.
    Type: Application
    Filed: October 15, 2019
    Publication date: January 6, 2022
    Applicant: National Oilwell Varco , L.P.
    Inventors: Andrew McKenzie, Robert Donnally, Lei Cheng, George Wu, Leo Yang
  • Publication number: 20060078406
    Abstract: An apparatus and method for maintaining electrical and hydraulic connections between a junction box (or junction boxes) located on or near an offshore platform's floor and a movable drilling rig structure are disclosed. The disclosed invention is a unique vertically folding service arm capable of moving in both the horizontal and vertical directions in order to provide enhanced range of movement. The increased range of movement provided by the vertically folding service arm of the present invention allows electrical and hydraulic supply lines to remain connected between a junction box (or boxes) located on or near the platform floor and the rig structure even as the rig structure moves back-and-forth on the platform between multiple well centers. The vertically folding service arm of the present invention can also be easily disconnected and “folded” for transport without requiring the electrical and hydraulic supply lines to be disconnected from the drilling rig structure.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 13, 2006
    Inventors: Robert Donnally, Neil Fehres