Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Insert or tip mounting feature
Reexamination Certificate
2008-04-30
2011-10-04
Kreck, John (Department: 3672)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Insert or tip mounting feature
C299S079100, C299S104000
Reexamination Certificate
active
08029068
ABSTRACT:
In one aspect of the invention, a degradation assembly comprises an impact tip brazed to a carbide bolster. A stem protrudes from the bolster, being adapted to be retained within a bore connected to a driving mechanism. A locking fixture is disposed within the bore and locking the stem to a wall of the bore.
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Dahlgren Scott
Hall David R.
Brinks Hofer Gilson & Lione
Kreck John
Schlumberger Technology Corporation
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