Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Insert or tip mounting feature
Reexamination Certificate
2008-06-09
2011-10-11
Kreck, John (Department: 3672)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Insert or tip mounting feature
Reexamination Certificate
active
08033615
ABSTRACT:
A retention assembly has a carbide bolster with a first and second segment brazed together, each segment forming at least part of a cavity formed of the bolster. A shaft has an inserted end is interlocked within the cavity.
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Dahlgren Scott
Durrand Christopher
Elqueta Italo
Hall David R.
Marshall Jonathan
Brinks Hofer Gilson & Lione
Kreck John
Schlumberger Technology Corporation
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