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Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element

  • US 7,845,436 B2
  • Filed: 08/24/2007
  • Issued: 12/07/2010
  • Est. Priority Date: 10/11/2005
  • Status: Active Grant
First Claim
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1. A subterranean drilling system, comprising:

  • a drill string;

    a rotary drill bit coupled to the drill string, the rotary drill bit comprising;

    a bit body; and

    a cutting element coupled to the bit body, the cutting element being structured to rotate in response to torque applied to the cutting element;

    a cam assembly coupled to the drill string, the cam assembly comprising a cam surface;

    a cam follower assembly in contact with the cam surface of the cam assembly; and

    a torque-applying structure coupled to the cam follower assembly, the torque-applying structure configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.

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