Patents Assigned to DRILFORMANCE TECHNOLOGIES, LLP
  • Drill bit and cutters for a drill bit
    Patent number: 9903163
    Abstract: In a fixed cutter drill bit, a hybrid cutter with a cutting edge including a substantially continuous curve interrupted by at least one arc discontinuity. In a fixed cutter drill bit, a contoured cutter with a contoured cutting face including a raised shape, wherein the raised shape has a raised shape axis which is oblique to a drill bit body axis. In a cutter for a fixed cutter drill bit, a chamfer including a side bevel and a cutting face bevel, wherein a cutting face bevel length is at least two times a side bevel length.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 27, 2018
    Assignee: DRILFORMANCE TECHNOLOGIES, LLP
    Inventor: Zane Michael Pettiet