Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2006-12-26
2006-12-26
Neuder, William P. (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
C175S430000
Reexamination Certificate
active
07152703
ABSTRACT:
A tungsten carbide compact of an earth boring bit has a cutting tip that is generally chisel-shaped with substantially flat flanks converging to an elongated crest. One of the flanks is smaller and has a greater included angle relative to the axis of the compact than the other flank. Shoulders extend from opposite ends of the crest. One shoulder has a radius of curvature that is smaller than the other shoulder.
REFERENCES:
patent: 3442342 (1969-05-01), Cunningham et al.
patent: 4108260 (1978-08-01), Bozarth
patent: 4722405 (1988-02-01), Langford, Jr.
patent: 5201376 (1993-04-01), Williams
patent: 5322138 (1994-06-01), Siracki
patent: 5379853 (1995-01-01), Lockwood et al.
patent: 5746280 (1998-05-01), Scott et al.
patent: 5881828 (1999-03-01), Fischer et al.
patent: 5915486 (1999-06-01), Portwood et al.
patent: 6059054 (2000-05-01), Portwood et al.
patent: 6119798 (2000-09-01), Fischer et al.
patent: 6196340 (2001-03-01), Jensen et al.
patent: 6241035 (2001-06-01), Portwood
patent: 6332503 (2001-12-01), Pessier et al.
patent: 6419034 (2002-07-01), Belnap et al.
patent: 6460637 (2002-10-01), Siracki et al.
patent: 6484826 (2002-11-01), Anderson et al.
patent: 6530441 (2003-03-01), Singh et al.
patent: 6619411 (2003-09-01), Singh et al.
patent: 7013999 (2006-03-01), Tufts
patent: 2005/0023043 (2005-02-01), Tufts
Eason Jimmy W.
Lema Raul E.
Meiners Matthew J.
Baker Hughes Incorporated
Bracewell & Giuliani LLP
Neuder William P.
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