Thomas Rollins Bell

US Patent:

7000890, Feb 21, 2006

Filed:

Jan 14, 2004

Appl. No.:

10/757658

Inventors:

Thomas M. Bell - Houston TX, US
James P. McAdams - Houston TX, US
Scott D. Ward - Houston TX, US

Assignee:

Cooper Cameron Corporation - Houston TX

International Classification:

F16K 31/122

US Classification:

251 62, 25112915, 251325

Abstract:

A pressure compensated shear seal solenoid valve for use in subsea control systems is disclosed utilizing an arcuate cross section fluid passageway to improve flow rates, ease of serviceability and reduce size.

US Patent:

7520297, Apr 21, 2009

Filed:

Jul 12, 2006

Appl. No.:

11/485113

Inventors:

Thomas M. Bell - Houston TX, US
Scott D. Ward - Houston TX, US

Assignee:

Cameron International Corporation - Houston TX

International Classification:

G05D 16/02
F16K 11/20

US Classification:

13750511, 137505, 13750518, 13750526, 251 52, 251176, 251327

Abstract:

A pressure regulator is provided. In one embodiment, the pressure regulator includes a housing having a supply port for receiving a pressurized medium within the housing and an outlet port for outputting the pressurized medium to a downstream device. The housing of this embodiment also includes a vent port for venting the pressurized medium from the housing. The pressure regulator of this embodiment further includes two pistons disposed within the housing, wherein one piston controls flow of the pressurized medium through the supply port, and the other piston controls flow of the pressurized medium through the vent port, based on the level of pressure within the housing. Other embodiments of pressure regulator devices and systems are also provided.

US Patent:

7757703, Jul 20, 2010

Filed:

Jul 12, 2006

Appl. No.:

11/485102

Inventors:

Thomas M. Bell - Houston TX, US
Scott D. Ward - Houston TX, US

Assignee:

Cameron International Corporation - Houston TX

International Classification:

G05D 16/10

US Classification:

1371163, 13750511, 13750518, 13750526

Abstract:

A pressure regulator is provided. In one embodiment, the pressure regulator includes a body having an internal cavity for receiving a pressurized medium and inlet and outlet ports that enable a pressurized medium to enter the internal cavity at a first pressure and exit at a second pressure. The exemplary pressure regulator also includes a control piston disposed within the internal cavity that is configured to move in response to a change in pressure within the internal cavity. The pressure regulator of this embodiment also includes a damping feature within the internal cavity that is configured to oppose the movement of the control piston. Other embodiments of pressure regulators and systems are also provided.

US Patent:

8291938, Oct 23, 2012

Filed:

Sep 8, 2008

Appl. No.:

12/669038

Inventors:

Mac M. Kennedy - Houston TX, US
Scott D. Ward - Houston TX, US
Thomas M. Bell - Houston TX, US

Assignee:

Cameron International Corporation - Houston TX

International Classification:

F16L 55/04

US Classification:

138 31, 138 30, 137 14

Abstract:

A pressure-compensated accumulator bottle is provided. In one embodiment, the accumulator bottle includes a housing and an interior wall that generally define first, second, and third chambers within the housing. In this embodiment, a spring is disposed in the second chamber and configured to apply a biasing force on a first piston disposed within the first chamber. Further, in this embodiment, an additional piston is disposed within the third chamber and is configured to facilitate balancing of the pressure of a fluid disposed in the second chamber with the pressure of the external environment such that the magnitude of a second biasing force applied on the first piston by the pressure of the fluid depends at least in part on the pressure of the external environment. Hydraulic circuits and systems including a pressure-compensated accumulator bottle are also disclosed.

US Patent:

8578970, Nov 12, 2013

Filed:

Aug 16, 2012

Appl. No.:

13/587871

Inventors:

Mac M. Kennedy - Houston TX, US
Scott D. Ward - Houston TX, US
Thomas M. Bell - Houston TX, US

Assignee:

Cameron International Corporation - Houston TX

International Classification:

F16L 55/04

US Classification:

138 31, 138 30, 137 14

Abstract:

A pressure-compensated accumulator bottle is provided. In one embodiment, the accumulator bottle includes a housing and an interior wall that generally define first, second, and third chambers within the housing. In this embodiment, a spring is disposed in the second chamber and configured to apply a biasing force on a first piston disposed within the first chamber. Further, in this embodiment, an additional piston is disposed within the third chamber and is configured to facilitate balancing of the pressure of a fluid disposed in the second chamber with the pressure of the external environment such that the magnitude of a second biasing force applied on the first piston by the pressure of the fluid depends at least in part on the pressure of the external environment. Hydraulic circuits and systems including a pressure-compensated accumulator bottle are also disclosed.

US Patent:

20040256104, Dec 23, 2004

Filed:

Jun 19, 2003

Appl. No.:

10/465371

Inventors:

Dennis Wilson - Katy TX, US
Thomas Bell - Lafayette LA, US

Assignee:

CONOCOPHILLIPS COMPANY

International Classification:

E21B036/00
E21B037/00
E21B043/25

US Classification:

166/302000, 166/304000, 166/312000, 507/269000, 507/927000, 166/305100

Abstract:

A method to clean the wellbore and the near wellbore formation adjacent to the wellbore of the gas bearing formation adjacent to the production zone of the wellbore. The method includes the steps of injecting a treatment liquid containing from 84.5 to 100% of liquid carbon dioxide, 0 to 15% of an alcohol, and 0 to 0.5% of a surfactant into the well in a predetermined quantity and maintaining the pressure of the treatment liquid in the near wellbore formation of the gas bearing formation below the fracturing pressure of the formation, releasing the pressure on the wellbore and allowing the liquid COto vaporize and other materials to blow out of the well.

US Patent:

20110302911, Dec 15, 2011

Filed:

Jun 15, 2010

Appl. No.:

12/815807

Inventors:

Don Coonrod - Katy TX, US
Melvyn F. Whitby - Houston TX, US
Gerrit M. Kroesen - Friendswood TX, US
Ronald W. Webb - Houston TX, US
Mac M. Kennedy - Houston TX, US
Katherine Harvey - Houston TX, US
David Gonzalez - Houston TX, US
Thomas M. Bell - Houston TX, US
James W. Wilkirson - Friendswood TX, US

Assignee:

CAMERON INTERNATIONAL, INC. - Houston TX

International Classification:

F15B 15/18
F04B 17/03
F15B 21/08

US Classification:

60369, 417416, 60420

Abstract:

In at least some embodiments, an apparatus includes a hydraulic directional control manifold and a plurality of electric piezopumps. The apparatus also includes an electric piezopump controller that operates the plurality of electric piezopumps in varying combinations to provide generation and directional control of hydraulic power to linear hydraulic actuators using localized closed-loop hydraulic fluid.

US Patent:

20120234396, Sep 20, 2012

Filed:

Mar 17, 2011

Appl. No.:

13/050752

Inventors:

Thomas M. Bell - Houston TX, US

Assignee:

Cameron International Corporation - Houston TX

International Classification:

F16K 31/12

US Classification:

137 14, 1374925

Abstract:

A pressure regulator is provided. In one embodiment, the pressure regulator includes a piston and supply seal rings, wherein the diameter of the piston is at least half of the sum of the diameters of the supply seal rings to reduce deadband and increase sensitivity. In another embodiment, the pressure regulator has a maximum deadband of less than 200 pounds per square inch when coupled to a supply pressure of at least 1000 pounds per square inch. Other embodiments related to pressure regulators are also provided.

Address:

Ns13 Lk Cherokee, Longview, TX 75603

Phone:

9036633620

VIN:

1FTSW21RX8EB75516

Make:

FORD

Model:

F250

Year:

2008

Address:

914 Dallas St, Houston, TX 77002

VIN:

1J8GK48K37W721547

Make:

JEEP

Model:

LIBERTY

Year:

2007