Invention Grant
- Patent Title: Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
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Application No.: US13092396Application Date: 2011-04-22
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Publication No.: US08684112B2Publication Date: 2014-04-01
- Inventor: Anthony A. DiGiovanni , Nicholas J. Lyons , Matthew S. Hale , John H. Liversage
- Applicant: Anthony A. DiGiovanni , Nicholas J. Lyons , Matthew S. Hale , John H. Liversage
- Applicant Address: US TX Houston IE County Clare
- Assignee: Baker Hughes Incorporated,Element Six Ltd
- Current Assignee: Baker Hughes Incorporated,Element Six Ltd
- Current Assignee Address: US TX Houston IE County Clare
- Agency: TraskBritt
- Main IPC: E21B10/56
- IPC: E21B10/56

Abstract:
Cutting elements, earth-boring drill bits having such cutting elements and related methods are described herein. In some embodiments, a cutting element for an earth-boring tool may include a diamond table having an indentation in a cutting face thereof and a shaped feature in a substrate at the interface between the diamond table and the substrate, the shaped feature corresponding to the indentation in the cutting face of the diamond table. In further embodiments, a cutting element for an earth-boring tool may include a sacrificial structure positioned within an indentation in a diamond table. In additional embodiments, a method of forming a cutting element may include positioning a sacrificial structure in a mold, positioning a powdered precursor material over the sacrificial structure, and pressing and sintering the powdered precursor material to form a diamond table having an indentation in a cutting face formed by the sacrificial structure.
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