Boring or penetrating the earth – Processes
Reexamination Certificate
2011-06-14
2011-06-14
Bagnell, David J (Department: 3676)
Boring or penetrating the earth
Processes
C175S269000, C175S286000, C175S406000
Reexamination Certificate
active
07958951
ABSTRACT:
An underreaming tool may include a tubular body, a drive tube, at least one blade element (“the blade element”), at least one wedge element (“the wedge element”), and a stop mechanism. The drive tube may include at least one longitudinal groove (“the longitudinal groove”) axially disposed along a length of the drive tube. The wedge element may include a first side having at least one lateral projection (“the lateral projection”) configured to axially slide into the longitudinal groove to couple the wedge element to the drive tube. The stop mechanism comprises a threaded sleeve configured to screw onto the drive tube to lock the wedge element in the longitudinal groove once the lateral projection is slid into the longitudinal groove.
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International Search Report, PCT/BE2005/000145, 4 pgs, Jun. 12, 2006.
Fanuel Philippe
Lassoie Jean-Pierre
Mageren Olivier
Sillen Valérie
Bagnell David J
Baker & Botts L.L.P.
Fuller Robert E
Halliburton Energy Service,s Inc.
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