Patents by Inventor David Robert Roy

David Robert Roy 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).

  • Frictional enhancement of mating surfaces of power cable installed in coiled tubing
    Patent number: 10683711
    Abstract: A string of coiled tubing for an electrical submersible well pump has insulated power conductors encased in an elastomeric jacket within the coiled tubing. A textured interface between the jacket and the inner side wall of the coiled tubing enhances frictional engagement between the jacket and the coiled tubing. The textured interface may be formed on the inner side wall of the coiled tubing and consist of a roughened or knurled surface. A tape may be wrapped helically around the jacket, the tape having an outer side with a textured surface in contact with the inner side wall of the coiled tubing. The textured interface may extend continuously for the length of the coiled tubing.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: June 16, 2020
    Assignee: Baker Hughes, a GE Company, LLC
    Inventors: Kenneth O'Grady, John Mack, Scott Strattan, David Robert Roy
  • Frictional Enhancement of Mating Surfaces of Power Cable Installed In Coiled Tubing
    Publication number: 20180202242
    Abstract: A string of coiled tubing for an electrical submersible well pump has insulated power conductors encased in an elastomeric jacket within the coiled tubing. A textured interface between the jacket and the inner side wall of the coiled tubing enhances frictional engagement between the jacket and the coiled tubing. The textured interface may be formed on the inner side wall of the coiled tubing and consist of a roughened or knurled surface. A tape may be wrapped helically around the jacket, the tape having an outer side with a textured surface in contact with the inner side wall of the coiled tubing. The textured interface may extend continuously for the length of the coiled tubing.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 19, 2018
    Applicant: Baker Hughes, a GE Company, LLC
    Inventors: Kenneth O'Grady, John Mack, Scott Strattan, David Robert Roy