Patents by Inventor Laverne F. Wallace

Laverne F. Wallace 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).

  • Patent number: 4471663
    Abstract: The present invention is a torquemeter for measuring the torque applied during drilling operations. The torquemeter is of generally flat annular form and adapted to be positioned in the drive train around a Kelly and between the rotary table and the Kelly bushing and to rotate therewith. The torquemeter includes an annular torque link receiving forces from the rotary table whereby torque is transmitted from the rotary table to the torque link. The torque link has a set of bearing areas for receiving azimuthal forces from the Kelly bushing whereby torque is transmitted from the torque link to the Kelly bushing. Each of the bearing regions is mechanically isolated from the remainder of the torque link except for radially oriented bridging beams which support the isolated regions and serve as the sole conduits for transfer of mechanical forces from the isolated region to the remainder of the torque link.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: September 18, 1984
    Assignee: Exxon Production Research Co.
    Inventor: Laverne F. Wallace