Boring or penetrating the earth – Automatic control – Of boring means including a below-ground drive prime mover
Reexamination Certificate
2006-12-19
2006-12-19
Thompson, Kenneth (Department: 3672)
Boring or penetrating the earth
Automatic control
Of boring means including a below-ground drive prime mover
C175S045000, C175S061000, C033S313000, C342S459000, C324S329000
Reexamination Certificate
active
07150331
ABSTRACT:
A system for determining the location of and communicating with a downhole tool assembly. A tracker assembly comprises a vertical transmitting antenna, a plurality of receiving antennas, and a processor. The downhole tool assembly has a beacon assembly comprising a plurality of receiving antennas, a transmitting antenna, an orientation sensor, and a processor. The transmitter in the tracker transmits a substantially vertical dipole field. The beacon assembly detects the vertical field and processes the signals to determine the location of the beacon relative to the tracker. The beacon assembly transmits the beacon location and operational information to the tracker assembly. The tracker assembly displays the beacon location and operational information on a visual display. The tracker assembly may also transmit operational commands or requests for information to the beacon assembly.
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Campbell Michael R.
Cole Scott B.
Marshall Bradley S.
The Charles Machine Works, Inc.
Thompson Kenneth
Tomlinson & O'Connell PC
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