Boring or penetrating the earth – Processes
Reexamination Certificate
2011-08-16
2011-08-16
Neuder, William P (Department: 3676)
Boring or penetrating the earth
Processes
C175S269000
Reexamination Certificate
active
07997354
ABSTRACT:
Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) to a longitudinal axis of the outer body. In some embodiments, the tools may include a moveable inner sleeve member configured to selectively allow hydraulic fluid pressure within the fluid passageway to act directly on the at least one blade. Methods for enlarging a borehole using such expandable reamer tools and methods for removing such expandable reamer tools from a borehole are also disclosed.
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Kizziar Mark R.
Morris Mark E.
Radford Steven R.
Shale Les T.
Shu Scott S.
Baker Hughes Incorporated
Loikith Catherine
Neuder William P
TraskBritt
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