Thomas W Robertson

US Patent:

54413400, Aug 15, 1995

Filed:

Sep 19, 1994

Appl. No.:

8/308477

Inventors:

Greg Cedillo - Houston TX
Thomas A. Robertson - Houston TX
Frank C. South - Spring TX
Robert A. Baten - Houston TX
Bruce A. Vicknair - Baytown TX

Assignee:

Stewart & Stevenson Services, Inc. - Houston TX

International Classification:

B01F 1504

US Classification:

366 2

Abstract:

An automated density and chemical controller automatically controls the density and chemical proportions of a slurry that is injected into a well during a well fracturing operation. The automated density controller receives from the operator the parameters of the fracturing operation and automatically controls the addition of a proppant to water to produce a slurry with a desired density. The automated density controller measures the incoming flow of water into a blender tub and regulates the delivery of proppant in the blender tub to produce a slurry of the desired density. The performance characteristics of the mechanism used to deliver the proppant are programmed into the controller to enable the controller to regulate the quantity of proppant delivered by controlling the operational speed of the delivery mechanism. The automated chemical controller regulates the addition of chemicals based on the incoming flow rate. The automated density controller also measures the flow of the slurry discharged from the blender tub and, together with the incoming flow rate, calculates the actual density of the slurry.

US Patent:

52810232, Jan 25, 1994

Filed:

Aug 2, 1989

Appl. No.:

7/389923

Inventors:

Greg Cedillo - Houston TX
Thomas A. Robertson - Houston TX
Frank C. South - Spring TX
Robert A. Baten - Houston TX
Bruce A. Vicknair - Baytown TX

Assignee:

Stewart & Stevenson Services, Inc. - Houston TX

International Classification:

B01F 1504

US Classification:

366 17

Abstract:

An automated density and chemical controller automatically controls the density and chemical proportions of a slurry that is injected into a well during a well fracturing operation to produce a slurry with a desired density. The automated controller automatically controls the addition of a proppant to water based on the parameters of the fracturing operation, the incoming flow of water into a blender tub, the incoming flow rate of chemicals, and the performance characteristics of the mechanism used to deliver the proppant. The automated density controller also measures the flow of the slurry discharged from the blender tub and calculates the actual density of the slurry. After comparing the calculated actual density with the desired density, the automated density controller calculates a correction factor and recalibrates the performance characteristics of the proppant delivery mechanism. The automated density controller also includes a densiometer for measuring the actual density of the slurry. The actual density measured by the densiometer is compared with the calculated actual density to provide an indication of whether the controller is operating correctly.

US Patent:

20160153287, Jun 2, 2016

Filed:

Jul 9, 2014

Appl. No.:

14/904003

Inventors:

- Farmington CT, US
Grant O. Cook - Spring TX, US
Lakshminarayan S. Bettagere - Farmington CT, US
Jonathan F. Zimmitti - Glastonbury CT, US
Majidullah Dehlavi - Manchester CT, US
Shari L. Bugaj - Haddam CT, US
Charles R. Watson - Windsor CT, US
Brian D. Walter - Vernon CT, US
Andrew G. Alarcon - Issaquah WA, US
Sarah M. Wall - Glastonbury CT, US
Christopher J. Hertel - Wethersfield CT, US
Octavio Martin - Broad Brook CT, US
Thomas J. Robertson - Glastonbury CT, US
Aaron Beaudry - Hartford CT, US
Jeffrey J. Scalia - Glastonbury CT, US
Joseph J. Wassel - Unionville CT, US
Joe Ott - Enfield CT, US
Barry Barnett - Markham, CA
Glenn Levasseur - Colchester CT, US

International Classification:

F01D 5/28
F01D 25/24
C25D 7/00
F16C 3/02
C23C 18/16
C25D 5/56
F01D 9/04
F01D 25/30

Abstract:

Plated polymeric gas turbine engine parts and methods for fabricating lightweight plated polymeric gas turbine engine parts are disclosed. The parts include a polymeric substrate plated with one or more metal layers. The polymeric material of the polymeric substrate may be structurally reinforced with materials that may include carbon, metal, or glass. The polymeric substrate may also include a plurality of layers to form a composite layup structure.

Address:

39 E Copper Sage Cir, Spring, TX 77381

VIN:

2S3DB517976104817

Make:

SUZUKI

Model:

XL7

Year:

2007