Nathan C Anderson

US Patent:

6419034, Jul 16, 2002

Filed:

Nov 7, 2000

Appl. No.:

09/707830

Inventors:

J. Daniel Belnap - Pleasant Grove UT
Ronald K. Eyre - Orem UT
Michael A. Siracki - The Woodlands TX
Per I. Nese - Houston TX
Madapusi K. Keshavan - Sandy UT
Nathan R. Anderson - Pleasant Grove UT

Assignee:

Smith International, Inc. - Houston TX

International Classification:

E21B 1056

US Classification:

175428, 175430

Abstract:

Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.

US Patent:

6484826, Nov 26, 2002

Filed:

Nov 7, 2000

Appl. No.:

09/707614

Inventors:

Nathan R. Anderson - Pleasant Grove UT
J. Daniel Belnap - Pleasant Grove UT
Chris E. Cawthorne - The Woodlands TX
Ronald K. Eyre - Orem UT
Madapusi K. Keshavan - Sandy UT
Per I. Nese - Houston TX
Michael A. Siracki - The Woodlands TX
Gary R. Portwood - Kingwood TX

Assignee:

Smith International, Inc. - Houston TX

International Classification:

E21B 1056

US Classification:

175428, 1754201

Abstract:

Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.

US Patent:

6651757, Nov 25, 2003

Filed:

May 16, 2001

Appl. No.:

09/858857

Inventors:

Dan Belnap - Pleasant Grove UT
Nathan Anderson - Pleasant Grove UT
Michael A. Siracki - The Woodlands TX
Sujian Huang - The Woodlands TX

Assignee:

Smith International, Inc. - Houston TX

International Classification:

E21B 1000

US Classification:

175374, 1754202, 175426, 175434

Abstract:

An insert for a drill bit is disclosed which includes an exposed surface having a contact portion adapted to periodically contact earthen formation. The contact portion includes a polycrystalline diamond material having a hardness in the range of about 2000 HV to about 3000 HV. In some embodiments, the polycrystalline diamond material includes a composite having a first phase material including polycrystalline diamond and a second phase material selected from the group of oxide particulates metal carbides, and metallic particulates, nitrides, and mixtures of thereof.

US Patent:

6951578, Oct 4, 2005

Filed:

Aug 10, 2000

Appl. No.:

09/637092

Inventors:

Daniel J. Belnap - Pleasant Grove UT, US
Nathan R. Anderson - Pleasant Grove UT, US
Zhigang Fang - The Woodlands TX, US
Anthony Griffo - The Woodlands TX, US
Brian A. White - The Woodlands TX, US

Assignee:

Smith International, Inc. - Houston TX

International Classification:

B32B009/00

US Classification:

75231, 419 11, 75252, 175374

Abstract:

PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.

US Patent:

20060080895, Apr 20, 2006

Filed:

Sep 27, 2005

Appl. No.:

11/237625

Inventors:

Daniel Belnap - Pleasant Grove UT, US
Nathan Anderson - Pleasant Grove UT, US
Zhigang Fang - The Woodlands TX, US
Anthony Griffo - The Woodlands TX, US
Brian White - The Woodlands TX, US

International Classification:

B21K 5/04
C09K 3/14

US Classification:

051307000, 076108200

Abstract:

PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.

US Patent:

61996459, Mar 13, 2001

Filed:

Feb 13, 1998

Appl. No.:

9/023264

Inventors:

Nathan R. Anderson - Pleasant Grove UT
J. Daniel Belnap - Pleasant Grove UT
Chris E. Cawthorne - The Woodlands TX
Ronald K. Eyre - Orem UT
Madapusi K. Keshavan - Sandy UT
Per I. Nese - Houston TX
Michael A. Siracki - The Woodlands TX
Gary R. Portwood - Kingwood TX

Assignee:

Smith International, Inc. - Houston TX

International Classification:

E21B 1046

US Classification:

175426

Abstract:

Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.

US Patent:

57663947, Jun 16, 1998

Filed:

Dec 6, 1995

Appl. No.:

8/568276

Inventors:

Nathan R. Anderson - Pleasant Grove UT
Ronald K. Eyre - Orem UT
Madapusi K. Keshavan - Sandy UT
Ghanshyam Rai - Sandy UT

Assignee:

Smith International, Inc. - Houston TX

International Classification:

B32B 3126
B22F 100
B22F 314

US Classification:

156 8911

Abstract:

A polycrystalline diamond layer is bonded to a cemented metal carbide substrate by this process. A layer of dense high shear compaction material including diamond or cubic boron nitride particles is placed adjacent to a metal carbide substrate. The particles of diamond have become rounded instead of angular due to high shear compaction in a multiple roller process. The volatiles in the high shear compaction material are removed and binder decomposed at high temperature, for example, 950. degree. C. , leaving residual amorphous carbon or graphite in a layer of ultra hard material particles on the carbide substrate. The substrate and layer assembly is then subjected to a high pressure, high temperature process, thereby sintering the ultra hard particles to each other to form a polycrystalline ultra hard layer bonded to the metal carbide substrate. The layer of high shear compaction material is also characterized by a particle size distribution including larger and smaller particles that are distributed uniformly throughout the layer.

US Patent:

58688854, Feb 9, 1999

Filed:

Jan 10, 1997

Appl. No.:

8/782543

Inventors:

Ronald B. Crockett - Orem UT
Scott M. Packer - Pleasant Grove UT
Richard L. Dixon - Provo UT
Nathan R. Anderson - Pleasant Grove UT
Ronald K. Eyre - Orem UT
Madapusi K. Keshavan - Sandy UT
Ghanshyan Rai - Sandy UT

Assignee:

Smith International, Inc. - Houston TX

International Classification:

B32B 3126
B21K 504

US Classification:

156 8927

Abstract:

A method for manufacturing cutting tools having diamond-like cutting edges or surfaces which are formed by bonding high shear compaction diamond or cubic boron nitride (CBN) ropes or strips in helical grooves formed on the cutting tool outer surface. The strips are formed by slitting a sheet of high shear compaction diamond or CBN material. The ropes are formed by rolling the strips between grooved rollers.

Address:

7511 85 St, Lubbock, TX 79424

VIN:

JH2DE02057K001067

Make:

Chevrolet

Model:

Geo Tracker 2dr Hardtop

Year:

2007