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US 8,998,346 B2Granted
Attack tool with an interruption
OwnerDavid R. Hall, Ronald B. Crockett +2inventors
InventorsDavid R. Hall, Ronald B. Crockett, John Bailey, Jeff Jepson
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Abstract
In one aspect of the present invention, a tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment brazed to an interfacial surface of the base axially opposed to the shank. At least one interruption is formed in the interfacial surface.
Claims13
A degradation tool, comprising:
- a steel base comprising a shank for attachment to a driving mechanism and a first surface opposite the shank;
- a carbide segment with an impact tip attached thereto for degrading a formation and a second surface opposite the impact tip;
- wherein the first surface and the second surface are brazed together to form an interfacial surface;
- at least one cavity formed in the first surface and interrupting the interfacial surface;
- and
- a smooth transition between the interfacial surface surrounding an opening of the at least one cavity and the second surface spanning the opening.
3 more elements
Dependencies are inferred from the claim text.