Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by longitudinally relatively movable...
Reexamination Certificate
2011-08-16
2011-08-16
Gay, Jennifer H (Department: 3672)
Boring or penetrating the earth
Cutter element laterally shiftable below ground
Cutter element shifted by longitudinally relatively movable...
C175S321000
Reexamination Certificate
active
07997356
ABSTRACT:
In various embodiments, a mining device can include a first housing portion and a second housing portion where relative movement between the first and second housing portions can extend and/or retract a cutting member with respect to the mining device. The mining device can further include a cable which can be mounted to the second housing portion where the cutting member is mounted to the cable and can be radially extended with respect to the first and second housing portions when the second housing portion is moved relative to the first housing portion along an axis. As the cutting member is extended, it can contact the sidewalls of a subterranean shaft to loosen material therefrom.
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International Search Report for International Application No. PCT/US2008/072317 dated Dec. 8, 2008.
Written Opinion for International Application No. PCT/US2008/072317 dated Dec. 8, 2008.
Gourley Allen J.
Gourley Larry P.
Gay Jennifer H
K&L Gates LLP
Loikith Catherine
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