Patents by Inventor Fred Earnest

Fred Earnest 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).

  • Method and apparatus for data communication with an underground instrument package
    Patent number: 6556144
    Abstract: A data communication system is provided for communicating with an underground instrument package positioned on a drilling apparatus. The drilling apparatus has an insulated section between first and second conductive sections. The system includes a power supply connected to the first conductive section of the drilling apparatus and to the ground. A receiver measures current flowing through the power supply. An electrical path is provided between the first and second conductive sections of the drilling apparatus. A switch provided in the electrical path opens and closes the electrical path in response to the data generated by the instrument package.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: April 29, 2003
    Assignee: Reuter-Stokes, Inc. (General Electric Company)
    Inventors: George Roberts, Edward Fraser, Fred Earnest