Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2007-08-13
2010-11-23
Bagnell, David J (Department: 3676)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
C175S398000, C175S383000
Reexamination Certificate
active
07836980
ABSTRACT:
Methods of forming cutting element pockets in blades of earth-boring tools include forming a first recess and a second recess intersecting at a location defining the a back of the pocket using a cutter oriented in a manner so as to avoid tool path interference with adjacent blades. A filler material is disposed in the second recess to the location of the back of the pocket. Earth-boring tools including such cutting element pockets.
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PCT International Search Report for International Application No. PCT/US2008/072998, mailed Jan. 5, 2009.
U.S. Appl. No. 11/717,905, filed Mar. 13, 2007, entitled “Earth-Boring Tools Having Pockets for Receiving Cutting Elements Therein and Methods of Forming Such Pockets and Earth-Boring Tools.”
Lyons Nicholas J.
Stevens John H.
Bagnell David J
Baker Hughes Incorporated
Ro Yong-Suk
TraskBritt
LandOfFree
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