Patents by Inventor Ronald C. Sadlin

Ronald C. Sadlin 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).

  • Siphon string assembly compatible for use with subsurface safety devices within a wellbore
    Patent number: 5421414
    Abstract: A hanger assembly used to support tubing, such as a siphon string, and other tools beneath the surface of a wellbore within casing or production tubing. The assembly includes a setting mechanism having first and second sleeves responsive to increased pressure for moving relative to one another for activating a slip assembly and sealing element. The setting mechanism is connected to reeled tubing by a quick disconnect device defining a passage for permitting fluid flow from the surface of the wellbore to the setting mechanism to provide hydraulic activation. The disconnect device is responsive to increased pressure within the passage for disconnecting the reeled tubing from the setting mechanism.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: June 6, 1995
    Assignee: Halliburton Company
    Inventors: Andrew R. Lane, Rufus Mullins, Jr., Ronald C. Sadlin, Colby M. Ross