Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Reexamination Certificate
2006-10-03
2006-10-03
Neuder, William (Department: 3672)
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Tool position direction or inclination measuring or...
C166S255200
Reexamination Certificate
active
07114580
ABSTRACT:
An apparatus for determining a trajectory of a directional drill includes two length measurement devices deployed along a surface of the drill string and a controller capable of determining the heading of the drill string from two lengths of the drill string measured by the two length measurement devices. A method includes determining at least two lengths along a surface of a drill string; and determining a heading of the drill string using the at least two determined lengths.
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Microtesla, Ltd.
Neuder William
Williams Morgan & Amerson P.C.
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