Drill bit and cutter element having a fluted geometry

Details Drill bit and cutter element having a fluted geometry Drill bit and cutter element having a fluted geometry

2008-01-16

2011-10-04

Bagnell, David (Department: 3676)

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

C175S432000, C175S331000

Reexamination Certificate

active

08028773

ABSTRACT:
A drill bit for cutting a borehole having a borehole sidewall, corner and bottom, includes a bit body having a bit axis and a rolling cone cutter mounted on the bit body and adapted for rotation about a cone axis. Further, the drill bit includes at least one insert having a base portion secured in the rolling cone cutter and having a cutting portion extending therefrom. The cutting portion of the at least one insert has a cutting surface including at least one flute.

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Merriam-Webster Dictionary definition of “Chisel”, accessed Nov. 16, 2010 at www.merriam-webster.com.

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