Boring or penetrating the earth – Automatic control – Of boring means including a below-ground drive prime mover
Patent
1996-09-10
1998-05-19
Neuder, William P.
Boring or penetrating the earth
Automatic control
Of boring means including a below-ground drive prime mover
175 51, 175230, E21B 4400
Patent
active
057525722
ABSTRACT:
The invention provides a tractor for locomoting a drilling apparatus. The tractor includes a retractable body for transporting and pressurizing a drill attached to a front drilling end of the retractable body. The retractable body is longitudinally extended and contracted for length adjustment. A drill stabilizer is attached to a rear trailing end of the retractable body. The drill stabilizer is extended to secure said retractable body during drilling and retracted for allowing movement of the rear trailing end of the retractable body. A position stabilizer is attached to the front drilling end of the retractable body. The position stabilizer is transversely extendable against the sidewalls of the drill hole for periodically stabilizing the retractable body. The position stabilizer retracts for operation of the drill when the drill is stabilized with the drill stabilizer. The tractor travels by extending and retracting the drill stabilizer, extending and retracting the position stabilizer and adjusting length of the retractable body.
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Baiden Gregory R.
de Vlugt Paul
Delabbio Fredric C.
Pascoli Jean P.
Young Donald D.
Biederman Blake T.
Inco Limited
Neuder William P.
Steen Edward A.
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