Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2006-01-31
2006-01-31
Dang, Hoang (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
C175S430000, C175S431000
Reexamination Certificate
active
06991049
ABSTRACT:
The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed an ultra hard material layer and a method of forming the same. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.
REFERENCES:
patent: 5217081 (1993-06-01), Waldenström et al.
patent: 5332051 (1994-07-01), Knowlton
patent: 5351772 (1994-10-01), Smith
patent: 5435403 (1995-07-01), Tibbitts
patent: 5484330 (1996-01-01), Flood et al.
patent: 5486137 (1996-01-01), Flood et al.
patent: 5494477 (1996-02-01), Flood et al.
patent: 5590727 (1997-01-01), Tank et al.
patent: 5590728 (1997-01-01), Matthias et al.
patent: 5605199 (1997-02-01), Newton
patent: 5617928 (1997-04-01), Matthias et al.
patent: 5622233 (1997-04-01), Griffin
patent: 5709279 (1998-01-01), Dennis
patent: 5711702 (1998-01-01), Devlin
patent: 5816347 (1998-10-01), Dennis et al.
patent: 5881830 (1999-03-01), Cooley
patent: 5887580 (1999-03-01), Eyre
patent: 5971087 (1999-10-01), Chaves
patent: 5979577 (1999-11-01), Fielder
patent: 6000483 (1999-12-01), Jurewicz
patent: 6009963 (2000-01-01), Chaves et al.
patent: 6011232 (2000-01-01), Matthias
patent: 6021859 (2000-02-01), Tibbitts et al.
patent: 6065554 (2000-05-01), Taylor et al.
patent: 6068071 (2000-05-01), Jurewicz
patent: 6082474 (2000-07-01), Matthias
patent: 6193001 (2001-02-01), Eyre et al.
patent: 6202771 (2001-03-01), Scott et al.
Eyre Ronald K.
Keshavan Madapusi K.
Truax David
Christie Parker & Hale LLP
Dang Hoang
Smith International Inc.
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