Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Wear shield or replaceable wear sleeve
Reexamination Certificate
2007-10-30
2010-11-16
Kreck, John (Department: 3672)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Wear shield or replaceable wear sleeve
C299S106000
Reexamination Certificate
active
07832808
ABSTRACT:
In one aspect of the present invention, a degradation assembly has a holder fitted within a block attached to a driving mechanism. The holder has a longitudinal central bore with an opening at an end opposite the driving mechanism. A high impact resistant tool has a carbide bolster axially intermediate a steel shank and an impact tip, the steel shank having a first end and a second end. A sleeve being radially intermediate the bore of the holder and the steel shank.
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Crockett Ronald
Hall David R.
Jepson Jeff
Kreck John
Townsend, III Philip W.
Wilde Tyson J.
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