Robert Sean Bradshaw

US Patent:

D466171, Nov 26, 2002

Filed:

Apr 3, 2001

Appl. No.:

29/139654

Inventors:

Robert J. Bradshaw - Palm Beach Gardens FL 33418

International Classification:

2102

US Classification:

D21743

US Patent:

8307920, Nov 13, 2012

Filed:

Aug 13, 2009

Appl. No.:

12/541048

Inventors:

Robert J. Buske - The Woodlands TX, US
James L. Overstreet - Tomball TX, US
Thomas M. Stefanik - Conroe TX, US
Shyam Anandampillai - Spring TX, US
Robert D. Bradshaw - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/16

US Classification:

175373, 175331

Abstract:

An earth boring drill bit that includes a cutting cone with a cutting disk. Compacts are inserted within the disk having a chisel shaped end set flush with the cutting disk periphery. The compact crests and cutting disk periphery form a generally seamless cutting surface. The cutting cone can further include cutting teeth thereon also having flush mounted compacts. The compacts can be made from a material such as cemented carbide, hardfacing, tungsten, tungsten alloys, tungsten carbide and the cutter made from steel.

US Patent:

20110290560, Dec 1, 2011

Filed:

Jun 1, 2010

Appl. No.:

12/791377

Inventors:

Robert J. Buske - The Woodlands TX, US
Mark Philip Blackman - Conroe TX, US
John F. Bradford - The Woodlands TX, US
Michael S. Damschen - Houston TX, US
Robert D. Bradshaw - The Woodlands TX, US
Rudolf C. Pessier - The Woodlands TX, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

E21B 12/02

US Classification:

175 39

Abstract:

A drill bit with a bit body having a central bore in communication with a plurality of nozzles for directing drilling fluid; a plurality of cutters defining a cutting face of the bit; and a passageway extending from the central bore toward the cutting face, such that excessive wear of the cutting face opens the passageway to allow the drilling fluid to flow therethrough, thereby reducing a surface pressure of the drilling fluid and indicating excessive wear of the bit. The passageway may extend to adjacent, or within one half inch or three inches of, the cutting face, such that excessive wear opens the passageway to the cutting face. In some cases, the passageway may actually extend through the cutting face with a plug inserted into the passageway at the cutting face to prevent the drilling fluid from exiting the passageway absent wear of the bit.

US Patent:

20120111638, May 10, 2012

Filed:

Nov 4, 2010

Appl. No.:

12/939367

Inventors:

Don Q. NGUYEN - Houston TX, US
Anton F. ZAHRADNIK - Sugar Land TX, US
Rudolf C. PESSIER - Houston TX, US
Mark P. BLACKMAN - Conroe TX, US
Robert D. BRADSHAW - The Woodlands TX, US
Scott A. YOUNG - Montgomery TX, US
Ronny D. MCCORMICK - Magnolia TX, US
Shyam ANANDAMPILLAI - Houston TX, US
Michael S. DAMSCHEN - Houston TX, US
Robert J. BUSKE - The Woodlands TX, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

E21B 10/00
B21K 5/04

US Classification:

175336, 761082

Abstract:

An earth boring drill bit designed for a specific performance, within a finished product tolerance, using components built to a looser manufacturing tolerance. The bit may be assembled by selecting a leg from a plurality of pre-manufactured legs; selecting a bit body from a plurality of pre-manufactured bit bodies, the bit body having a slot for receiving the leg; placing the leg within the slot; and fixing the leg within the slot within the finished product tolerance by placing one or more shims between the leg and the slot. The shims may be used to adjust an axial position, a radial position, and/or a circumferential position of the leg with respect to the slot. The leg and the bit body may be selected, or produced, to ensure the bit will not meet the specification, given the manufacturing tolerance, without the shims.

US Patent:

60762217, Jun 20, 2000

Filed:

Sep 17, 1998

Appl. No.:

9/154936

Inventors:

Robert John Bradshaw - Palm Beach Gardens FL

International Classification:

A46B 700
A46B 500
A46B 1500

US Classification:

15160

Abstract:

An adjustable brush for cleaning grout includes a group of brush mounting constructions slidably disposed on a rigid support track. Each mounting construction is movable, yet selectively held in place along the longitudinal axis of the support track. A brush assembly is removably attached to each brush mounting construction. Each brush assembly includes bristles secured within a bristle holding member, and the brush assemblies are selectively held in place during use.

US Patent:

20140326514, Nov 6, 2014

Filed:

May 3, 2013

Appl. No.:

13/886911

Inventors:

Chih Lin - Huntsville TX, US
Aaron J. Dick - Houston TX, US
Jon D. Schroder - The Woodlands TX, US
Anton F. Zahradnik - Sugar Land TX, US
Alejandro Flores - Spring TX, US
Robert D. Bradshaw - The Woodlands TX, US

Assignee:

BAKER HUGHES INCORPORATED - HOUSTON TX

International Classification:

E21B 10/62

US Classification:

175327, 29428

Abstract:

In one aspect, a drill bit is disclosed that in one embodiment may include a bit body, a rotating cutter on the bit body, and a metallic seal between the bit body and the rotating cutter that includes a first seal member, a second seal member having a first end in sealing contact with the first seal member, a second end fixed relative to the first end and a bias member between the first end and the second end that adjusts the load on the first seal member in response to external load applied on the drill bit.

Address:

21306 Bella Mtn Dr, Spring, TX 77379

VIN:

1D3HB13P59S771879

Make:

DODGE

Model:

RAM 1500

Year:

2009

Author:

Robert Bradshaw

ISBN #:

0030008999

Author:

Robert Bradshaw

ISBN #:

0030332745

Author:

Robert Bradshaw

ISBN #:

0534403654

Author:

Robert Bradshaw

ISBN #:

0534403719