Inventors:
Lawrence M. Lenahan - Westlake OH
Bernam G. Fraley - Clinton MI
Mark R. Kaletta - Shreve OH
David E. Koehmstedt - Hoover AL
Assignee:
McNally Tunneling Corporation - Westlake OH
International Classification:
E21B19/00
Abstract:
An apparatus for pushing tubular members along a tunnel, the apparatus comprising a frame shaped to receive a tubular member therein and having an open end shaped to receive the tubular member therethrough, and a pushing element mounted on and displaceable along the frame for engaging a tubular member within the frame and pushing the tubular member along the frame and through the open end. The apparatus further includes a drive motor mounted on the pushing element and engaging the frame, the drive motor displacing the pushing element along the frame relative to the open end.