Redd H Smith
Engineers in Salt Lake City, UT

6521174, Feb 18, 2003

Nov 21, 2000

09/717595

Trent N. Butcher - Sandy UT
Ralph M. Horton - Murray UT
Stephen R. Jurewicz - Northridge CA
Danny E. Scott - Montgomery TX
Redd H. Smith - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

B22F 704

419 26, 419 17, 419 18

The residual stresses that are experienced in polycrystalline diamond cutters, which lead to cutter failure, can be effectively modified by selectively thinning the carbid substrate subsequent to a high-temperature, high-pressure (sinter) processing, by selectively varying the material constituents of the carbide substrate, by subjecting the PDC cutter to an annealing process during sintering, by subjecting the formed PDC cutter to a post-process stress relief anneal, or by a combination of those means.

6354362, Mar 12, 2002

Nov 17, 1998

09/192856

Redd H. Smith - Salt Lake City UT
Sidney L. Findley - West Valley City UT
Trent N. Butcher - Midvale UT

Baker Hughes Incorporated - Houston TX

B22D 1724

164332, 164333

A method of infiltrating preformed, bonded-particulate components, such as rotary bits, for subterranean drilling manufactured by techniques such as layered-manufacturing or those employed in rapid prototyping technology. A support structure is provided for the preformed component to physically support the preformed component during various manufacturing processes such as sintering and infiltration.

5348108, Sep 20, 1994

Jun 8, 1992

7/895594

Danny E. Scott - Houston TX
Redd H. Smith - Salt Lake City UT
Gordon A. Tibbitts - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

E21B 1046

175432

An improved earth-boring bit the rolling cone variety and an insert for use therein is provided. A superabrasive element is coated with at least one layer of metallic material. The superabrasive element then is placed in a receptacle cavity in a pre-formed hard metal jacket. The superabrasive element then is brazed or infiltrated to the hard metal jacket. Metallurgical and mechanical bonds between the superabrasive element, the at least one layer of metallic material on superabrasive element, the braze or infiltrant binder material, and the fracture-tough material of the hard metal jacket retain the superabrasive element in the cavity of the hard metal jacket. Improved earth-boring bits according to this embodiment of the present invention provide abrasion-resistant earth-boring bits of the rolling cutter variety. Such improved bits, and the inserts therefore, are formed without resort to high-temperature, high-pressure processes.

5355750, Oct 18, 1994

Nov 29, 1993

8/159009

Danny E. Scott - Houston TX
Redd H. Smith - Salt Lake City UT
Gordon A. Tibbitts - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

B21K 502

761082

An improved earth-boring bit the rolling cone variety and an insert for use therein is provided. A superabrasive element is coated with at least one layer of metallic material. The superabrasive element then is placed in a receptacle cavity in a pre-formed hard metal jacket. The superabrasive element then is brazed or infiltrated to the hard metal jacket. Metallurgical and mechanical bonds between the superabrasive element, the at least one layer of metallic material on superabrasive element, the braze or infiltrant binder material, and the fracture-tough material of the hard metal jacket retain the superabrasive element in the cavity of the hard metal jacket. Improved earth-boring bits according to this embodiment of the present invention provide abrasion-resistant earth-boring bits of the rolling cutter variety. Such improved bits, and the inserts therefore, are formed without resort to high-temperature, high-pressure processes.

5839329, Nov 24, 1998

Sep 24, 1996

8/719281

Redd H. Smith - Salt Lake City UT
Sidney L. Findley - West Valley City UT
Trent N. Butcher - Midvale UT

Baker Hughes Incorporated - Houston TX

B21K 506

761082

A method of infiltrating preformed, bonded-particulate components, such as rotary bits, for subterranean drilling manufactured by techniques such as layered-manufacturing or those employed in rapid prototyping technology. A support structure is provided for the preformed component to physically support the preformed component during various manufacturing processes such as sintering and infiltration.

5431239, Jul 11, 1995

Apr 8, 1993

8/044938

Gordon A. Tibbitts - Salt Lake City UT
Craig H. Cooley - Bountiful UT
Redd H. Smith - Salt Lake City UT
Paul E. Pastusek - Salt Lake City UT
Ralph M. Horton - Murray UT

E21B 1046

175428

An improved stud design for an earth boring drill bit is disclosed preferably using materials of different hardness and toughness layered to provide maximum resistance to surface abrasion coupled with excellent structural properties including high strength with maximum fracture toughness. The bit body is conventionally attached to a drill string, and has a crown and gage portion. The studs preferably include a core, made of steel or other material having high fracture toughness, covered at least in part with a hard, abrasion resistant material such as tungsten carbide. Each stud is secured to a socket in the bit body by means of brazing or other suitable means such as a press fit. The cutting element is brazed to a mounting face of the stud prior to affixation of the stud to the bit body and is preferably comprised of a polycrystalline diamond compact adhered to a backing layer of tungsten carbide.

5967250, Oct 19, 1999

Jun 10, 1997

8/872207

Jeffrey B. Lund - Salt Lake City UT
Redd H. Smith - Salt Lake City UT
Trent N. Butcher - Midvale UT

Baker Hughes Incorporated - Houston TX

E21B 1046, B23P 900

175428

A superhard cutting element having a polished, low friction 1 substantially planar cutting face with a surface finish roughness of 10. mu. in. or less and preferably 0. 5. mu. in. or less. A chamfered cutting edge and side surface of the superhard material table of the same surface finish roughness are also disclosed. The surface roughness of the aforementioned superhard material table portions may be reduced by mechanically smoothing and polishing according to one of several variations of the method of the invention.

5544550, Aug 13, 1996

May 9, 1995

8/438200

Redd H. Smith - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

B21K 504

761082

A method of fabricating rotary bits for subterranean drilling by layering techniques such as are employed in rapid prototyping technology. Thin layers of powder may be sequentially deposited and fused or otherwise bonded to define the bit body, or thin sheets of material may be stacked, bonded and cut. Bit body components may also be formed by the method and subsequently assembled with other components made in like manner or by other methods to produce a bit body. Bits fabricated according to the method are also disclosed.

5820985, Oct 13, 1998

Dec 7, 1995

8/569828

Jacob Chow - Salt Lake City UT
Ralph M. Horton - Murray UT
Redd H. Smith - Salt Lake City UT
Gordon A. Tibbitts - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

B24D 1100

428408

A polycrystalline diamond layer attached to a cemented metal carbide structure used as a cutter wherein the cutter has improved toughness or fracture resistance during use through the inclusion of boron, beryllium or the like therein.