Patents by Inventor Zane Michael Pettiet

Zane Michael Pettiet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • DRILL BIT AND CUTTERS FOR A DRILL BIT
    Publication number: 20150047912
    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: Application
    Filed: February 28, 2013
    Publication date: February 19, 2015
    Applicant: DRILFORMANCE TECHNOLOGIES, LLC
    Inventor: Zane Michael Pettiet
  • Shoulder durability enhancement for a PDC drill bit using secondary and tertiary cutting elements
    Patent number: 8544568
    Abstract: A PDC bit includes a plurality of blades. A blade includes a primary cutter row and a secondary cutter row. Primary PDC cutters on the primary cutter row are set in accordance with a single set methodology. Backup PDC cutters on the secondary cutter row are set in accordance with a methodology wherein a radial position of each backup PDC cutter in the secondary cutter row is offset from a radial position of each primary PDC cutter in the primary cutter row. The blade further includes a tertiary cutter row. Additional backup PDC cutters on the tertiary cutter row are set in accordance with a methodology wherein a radial position of each additional backup PDC cutter in the tertiary cutter row is offset from a radial position of each primary PDC cutter in the primary cutter row. The backup cutter setting methodology is effectively radially positions the included backup PDC cutters (in the secondary cutter row and/or tertiary cutter row) between primary PDC cutters in the primary cutter row.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: October 1, 2013
    Assignee: Varel International, Inc., L.P.
    Inventors: Cary Andrew Maurstad, Zane Michael Pettiet
  • SHOULDER DURABILITY ENHANCEMENT FOR A PDC DRILL BIT USING SECONDARY AND TERTIARY CUTTING ELEMENTS
    Publication number: 20120138365
    Abstract: A PDC bit includes a plurality of blades. A blade includes a primary cutter row and a secondary cutter row. Primary PDC cutters on the primary cutter row are set in accordance with a single set methodology. Backup PDC cutters on the secondary cutter row are set in accordance with a methodology wherein a radial position of each backup PDC cutter in the secondary cutter row is offset from a radial position of each primary PDC cutter in the primary cutter row. The blade further includes a tertiary cutter row. Additional backup PDC cutters on the tertiary cutter row are set in accordance with a methodology wherein a radial position of each additional backup PDC cutter in the tertiary cutter row is offset from a radial position of each primary PDC cutter in the primary cutter row. The backup cutter setting methodology is effectively radially positions the included backup PDC cutters (in the secondary cutter row and/or tertiary cutter row) between primary PDC cutters in the primary cutter row.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 7, 2012
    Applicant: VAREL INTERNATIONAL, IND., L.P.
    Inventors: Cary Andrew Maurstad, Zane Michael Pettiet