Patents by Inventor Rob A. Coyle

Rob A. Coyle 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).

  • Tri-line power cable for electrical submersible pump
    Patent number: 7611339
    Abstract: A power line for an electrical submersible pump has three metallic impermeable tubes. A single electrical conductor is located within each of the tubes. Each conductor has at least one elastomeric insulation layer surrounding it. An annular portion of the insulation layer of each of the electrical conductors is in tight contact with the tube to form a seal. The annular portions may be annular crimps formed in the tube at intervals. The annular portion could also be a continuous seal caused by swelling of the insulation layer due to contact with a hydrocarbon.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: November 3, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Steven K. Tetzlaff, Larry J. Parmeter, Ed L. Doty, Rob A. Coyle, Thomson H. Wallace, Larry V. Dalrymple, David H. Neuroth
  • Tri-line power cable for electrical submersible pump
    Publication number: 20070046115
    Abstract: A power line for an electrical submersible pump has three metallic impermeable tubes. A single electrical conductor is located within each of the tubes. Each conductor has at least one elastomeric insulation layer surrounding it. An annular portion of the insulation layer of each of the electrical conductors is in tight contact with the tube to form a seal. The annular portions may be annular crimps formed in the tube at intervals. The annular portion could also be a continuous seal caused by swelling of the insulation layer due to contact with a hydrocarbon.
    Type: Application
    Filed: August 25, 2005
    Publication date: March 1, 2007
    Inventors: Steven Tetzlaff, Larry Parmeter, Ed Doty, Rob Coyle, Thomson Wallace, Larry Dalrymple, David Neuroth