Patents by Inventor Clarence F. Hall, Jr.

Clarence F. Hall, Jr. 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).

  • Insulated bearings for downhole motors
    Patent number: 7950906
    Abstract: A submersible pumping system for use downhole, wherein the system includes a pump, a pump motor, a seal section, a shaft coupling the pump motor to the pump, a bearing assembly for axially retaining the shaft in place, and an electrical insulator for electrically isolating the pump bearing assembly from electrical current leaking from the motor and through the shaft. The electrical insulator can be made from polyetheretherketone, polyimide, polyketone, and mixtures thereof.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: May 31, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Clarence F. Hall, Jr., Dick L. Knox, Brett D. Leamy
  • INSULATED BEARINGS FOR DOWNHOLE MOTORS
    Publication number: 20090047156
    Abstract: A submersible pumping system for use downhole, wherein the system includes a pump, a pump motor, a seal section, a shaft coupling the pump motor to the pump, a bearing assembly for axially retaining the shaft in place, and an electrical insulator for electrically isolating the pump bearing assembly from electrical current leaking from the motor and through the shaft. The electrical insulator can be made from polyetheretherketone, polyimide, polyketone, and mixtures thereof.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 19, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Clarence F. Hall, JR., Dick L. Knox, Brett D. Leamy