Patents by Inventor Harry Richard Stanley O'Brien

Harry Richard Stanley O'Brien 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).

  • Roller device
    Patent number: 9803432
    Abstract: A roller device for incorporation into a wireline tool string for use in an oil or gas well has a body with rollers comprising captive bearings arranged on the outer surface of the body to rotate around more than one axis relative to the body, and wherein the rollers are arranged in at least one or more helix around the body. Each helix completes at least one full circumferential turn around the body. The rollers circumferentially overlap one another on the body, so that when the body engages the inner wall of the wellbore, the entire circumference of the body is supported by at least one roller.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: October 31, 2017
    Assignee: NATIONAL OILWELL VARCO UK LIMITED
    Inventors: Carl Wood, Harry Richard Stanley O'Brien
  • ROLLER DEVICE
    Publication number: 20150361731
    Abstract: A roller device for incorporation into a wireline tool string for use in an oil or gas well has a body with rollers comprising captive bearings arranged on the outer surface of the body to rotate around more than one axis relative to the body, and wherein the rollers are arranged in at least one or more helix around the body. Each helix completes at least one full circumferential turn around the body. The rollers circumferentially overlap one another on the body, so that when the body engages the inner wall of the wellbore, the entire circumference of the body is supported by at least one roller.
    Type: Application
    Filed: November 14, 2013
    Publication date: December 17, 2015
    Applicant: National Oilwell Varco UK Limited
    Inventors: Carl Wood, Harry Richard Stanley O'Brien
  • Wireline roller device
    Patent number: D732086
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: June 16, 2015
    Assignee: National Oilwell Varco UK Limited
    Inventors: Harry Richard Stanley O'Brien, Carl Richard Wood