Boring or penetrating the earth – Processes
Reexamination Certificate
2008-10-29
2010-10-05
Bomar, Shane (Department: 3676)
Boring or penetrating the earth
Processes
C175S323000, C175S403000, C175S056000
Reexamination Certificate
active
07806204
ABSTRACT:
Drill rods and systems for use in drilling processes, as well as methods for making and using such drill rods and systems. A drill rod configured for sonic drilling operations can include a cylindrical body having an interior surface and an exterior surface. A first connector may be located on a first end of the cylindrical body and a second connector may be located on a second end of the cylindrical body. The first connector and the second connector can be complementary. The drill rod can include a helical feature and a corresponding helical channel on the exterior surface of the cylindrical body. The helical feature and corresponding helical channel can be configured for moving material displaced during a drilling operation in an axial direction away from one end of the drill rod to the other.
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Bomar Shane
Longyear TM, Inc.
Workman Nydegger
LandOfFree
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