Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Plural cutting edges on tooth – pick – or bit
Reexamination Certificate
2011-06-21
2011-06-21
Lagman, Frederick L (Department: 3672)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Plural cutting edges on tooth, pick, or bit
C299S107000, C299S113000
Reexamination Certificate
active
07963615
ABSTRACT:
Apparatus, methods, and other embodiments associated with a mining and demolition tool are described herein. In an embodiment, a mining and demolition bit tool includes a mining tool base and a mining bit tool tip coupled to the mining bit tool base. The base includes a tapered portion and a stem. The tapered portion includes a first end and a second end, with a surface tapering from the first end to the second end. There is at least one flute positioned along the tapered surface, where the flute is helical in shape. The stem extending from the first end of the tapered portion, and the tip is coupled to the second end of the tapered portion.
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Alter Gene
Greenspan Alexander
Greenspan Gregory
Lagman Frederick L
McDonald Hopkins LLC
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