Patents by Inventor Tim W. Pinkston

Tim W. Pinkston 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: 9725997
    Abstract: An electrical submersible well pump assembly includes a pump driven by an electrical motor. A string of tubing connects to the well pump assembly and extends to an upper end of a well. A power cable installed in the tubing has three insulated electrical conductors embedded within an elastomeric jacket. A metal strip has turns wrapped helically around the jacket. The metal strip is compressed between the jacket and the tubing to cause the power cable to frictionally grip the tubing.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: August 8, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Tim W. Pinkston, Don C. Cox
  • Publication number: 20160047210
    Abstract: An electrical submersible well pump assembly includes a pump driven by an electrical motor. A string of tubing connects to the well pump assembly and extends to an upper end of a well. A power cable installed in the tubing has three insulated electrical conductors embedded within an elastomeric jacket. A metal strip has turns wrapped helically around the jacket. The metal strip is compressed between the jacket and the tubing to cause the power cable to frictionally grip the tubing.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 18, 2016
    Inventors: Tim W. Pinkston, Don C. Cox
  • Patent number: 6143988
    Abstract: An electrical line for installation in a well for transmitting power to a well pump includes a string of coiled tubing. An electrical cable having insulated electrical conductors embedded within an elastomeric jacket extends longitudinally through the interior passage of the tubing. Retainers are mounted to the electrical cable and spaced longitudinally apart from each other. An indentation is integrally formed in the tubing adjacent each of the retainers. Each indentation protrudes into the interior passage of the tubing and creates a ledge which is contacted by one of the retainers when the electrical line is installed in the well. The indentations and retainers transfer weight of the electrical cable to the tubing. Weld material is filled into the depression on the surface created by each indentation.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: November 7, 2000
    Assignee: Baker Hughes Incorporated
    Inventors: David H. Neuroth, Larry Dalrymple, Earl B. Brookbank, Tim W. Pinkston, Don C. Cox