E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/69
E21B 10/56 (2006.01)
Patent
CA 1311745
DRILL BIT HAVING IMPROVED CUTTER CONFIGURATION ABSTRACT Drill bits may include cutting members which have cutting faces formed of segments of differing cutting materials. The faces of the cutting members may include two or more segments, with the segments formed from at least two different materials. For example, a first segment could be formed of a polycrystalline diamond compact surface while a second segment could be formed of a thermally stable diamond product material.
604897
Eastman Christensen Company
Gowling Lafleur Henderson Llp
Juergens Rainer
LandOfFree
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