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US 7,484,576 B2Granted
Jack element in communication with an electric motor and or generator
OwnerDavid R. Hall, Tyson J. Wilde +1inventors
InventorsDavid R. Hall, Tyson J. Wilde, Ben Miskin
Life of this patent
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Abstract
A drill bit has a body intermediate a shank and a working face and has an axis of rotation. The working face has at least one cutting element and the body has at least a portion of a jack assembly. The jack assembly has at least a portion of a shaft disposed within a cavity formed in the body of the drill bit, the shaft having a distal end extending from an opening of the cavity formed in the working face. The jack assembly also has an electric motor and/or generator.
Claims19
A drill bit comprising:
- a body intermediate a shank and a working face and comprising an axis of rotation;
- the working face comprising at least one cutting element and the body comprising at least a portion of a jack assembly;
- the jack assembly comprising at least a portion of a shaft disposed within a cavity formed in the body of the drill bit, the shaft comprising a distal end extending from an opening of the cavity formed in the working face;
- and
- the jack assembly also comprising an electric motor and/or generator;
- wherein the jack assembly is adapted to stabilize the drill bit by indenting the distal end into a formation;
- wherein the distal end of the shaft comprises a bias adapted to steer a tool string connected to the drill bit.
4 more elements
Dependencies are inferred from the claim text.