Thomas W 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:

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.

US Patent:

20190301261, Oct 3, 2019

Filed:

May 17, 2019

Appl. No.:

16/415542

Inventors:

- Sugar Land TX, US
Marion M. Ringo - League City TX, US
David Chesney - Houston TX, US
Roma Montifar - Katy TX, US
Thomas Bell - Houston TX, US
Tyler Chaney - Houston TX, US
Joel Henry - Manvel TX, US
Craig Ronald Smith - Norman OK, US
Steven Robert Olsen - Rosenberg TX, US

International Classification:

E21B 33/068

Abstract:

A ball launcher and method for actuating wellsite equipment at a wellsite is disclosed. The wellsite has wellhead equipment positioned at an inlet of a wellbore. The ball launcher includes a housing, a ball release, and a housing extension. The housing has a passage for receiving balls. The ball is release positionable about the housing. The ball release includes a feeder to selectively and sequentially release the balls from the housing. The housing extension includes a hopper tube and a feed tube. The hopper tube has an inlet to receive the balls from the housing, the feed tube extending at an angle from the hopper tube. The feed tube has an exit a distance above the wellhead equipment to release the balls therethrough whereby the balls are dropped into and activates the wellsite equipment in the wellbore.