Directional boring machine

Details Directional boring machine Directional boring machine

1996-08-21

1998-09-08

Schoeppel, Roger J.

Boring or penetrating the earth

With means to simultaneously feed and rotate tool from a...

175122, 175162, 175195, 175203, E21B 302

Patent

active

058031898

ABSTRACT:
A directional boring machine is disclosed which is capable of drilling substantially horizontal underground bores of significant length. The boring machine includes a movable carriage, a longitudinal boom mounted on the carriage and a drill head that is mounted on the boom for forward and reversible movement. A first drive normally advances the drill head to accomplish the drilling operation. When an obstacle is encountered, a second drive may be utilized to supplement the first drive to overcome the obstacle. The boom is itself longitudinally slidable relative to the carriage, and the boring machine includes a structure for longitudinally moving the boom between an extended operating position and a retracted transport position.

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