The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 01, 2008

Filed:

Oct. 18, 2004
Applicants:

Greg Lockwood, Pearland, TX (US);

Thomas W. Oldham, The Woodlands, TX (US);

Anthony Griffo, The Woodlands, TX (US);

Madapusi K. Keshavan, The Woodlands, TX (US);

David A. Conroy, The Woodlands, TX (US);

Inventors:

Greg Lockwood, Pearland, TX (US);

Thomas W. Oldham, The Woodlands, TX (US);

Anthony Griffo, The Woodlands, TX (US);

Madapusi K. Keshavan, The Woodlands, TX (US);

David A. Conroy, The Woodlands, TX (US);

Assignee:

Smith International, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

An insert for a drill bit that includes diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less is disclosed. A method of forming a diamond-impregnated cutting structure, that includes loading a plurality of substantially uniformly coated diamond particles into a mold cavity, pre-compacting the substantially uniformly coated diamond particles using a cold-press cycle, and heating the compacted, substantially uniformly coated diamond particles with a matrix material to form the diamond impregnated cutting structure is also disclosed.


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