Boring or penetrating the earth – Processes – Boring curved or redirected bores
Reexamination Certificate
2005-11-01
2005-11-01
Walker, Zakiya (Department: 3672)
Boring or penetrating the earth
Processes
Boring curved or redirected bores
C175S019000, C175S073000
Reexamination Certificate
active
06959772
ABSTRACT:
Methods and apparatuses for maneuvering through a medium such as soil are disclosed. One such apparatus has a generally longitudinal body that can impel itself through the medium. This apparatus also has at least two independently-controllable packers arranged radially on its body to compress and grip the medium in order to provide forward, backward, and directional impulsion.
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Matheson Gordon M.
Stegmaier Shawn C.
Van Dyck Gene
Vidal Dean
General Dynamics Advanced Information Systems Inc.
Steptoe & Johnson LLP
Walker Zakiya
LandOfFree
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