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US 2008/0173482 A1Published application
Drill Bit
OwnerDavid R. Hall, John Bailey +1inventors
InventorsDavid R. Hall, John Bailey, Casey Webb
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Abstract
In one aspect of the present invention, a rotary drag drill bit has a body intermediate a shank and a working face. The working face has a plurality of blades converging towards a center of the working face and diverging towards a gauge of the working face. A carbide section is fixed to the working face and positioned within a pocket disposed within an inverted cone of the working face. The carbide section has a distal end exposed within the working face.
Claims19
A rotary drag drill bit, comprising:
- a body intermediate a shank and a working face;
- the working face comprising a plurality of blades converging toward a center of the working face and diverging toward a gauge of the working face;
- a carbide section fixed to the working face and positioned within a pocket disposed within an inverted cone of the working face;
- and
- the carbide section comprising a distal end exposed within the working face.
2 more elements
Dependencies are inferred from the claim text.