Patents by Inventor George W. Terral

George W. Terral 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).

  • Drill bit extension for sidewall corer
    Patent number: 4396074
    Abstract: This invention relates to an apparatus for cutting cores from the sidewall of a borehole after the borehole has been drilled. The apparatus includes an elongated housing which supports guide means which provides a path along which a core bit and motor can be moved to extend and retract the core bit. The guide means has a rotational control section and a transverse control section. The rotation control section guides the motor and its core bit from an upright position in the housing to a selected angle and the vertical transverse control section guides the coring bit means in the direction of the formation.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: August 2, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Alfred H. Jageler, Lauren G. Kilmer, Houston B. Mount, II, George W. Terral