Andrew David Stewart
Engineers at Maple Hl Dr, Fort Collins, CO
License number
Colorado 48359
Issued Date
Dec 17, 2013
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
2503 Maple Hill Dr, Fort Collins, CO 80524
Professional information
Cable Tensioning Device
US Patent:
5454272, Oct 3, 1995
Filed:
Feb 7, 1994
Appl. No.:
8/192435
Inventors:
Mark F. Miller - Billings MT
Allan G. Burk - Fort Collins CO
Andrew H. Stewart - Fort Collins CO
Allan G. Burk - Fort Collins CO
Andrew H. Stewart - Fort Collins CO
Assignee:
IHS Engineering, Inc. - Billings MT
International Classification:
G01L 500
US Classification:
7386241
Abstract:
A non-destructive method for tensioning a cable under tension is described whereby the cable is contacted with an impact stimulus with a force transverse to the length of the cable thereby creating an incident vibrational wave in the cable and propagating the wave along the length of the cable. The propagating wave is sensed by a first accelerometer positioned on the cable which detects the passage and amplitude of the wave and creates electrical signals having a magnitude directly proportional to the amplitude of the wave. A second accelerometer which is positioned at a distance apart from the first accelerometer subsequently senses and detects the passage of the wave at the second accelerometer, also creating electrical signals having a magnitude directly proportional to the amplitude of the wave. The electrical signals from the accelerometers are received and processed to ultimately calculate the tension in the cable.
Conductor Cleaning System And Method
US Patent:
2010018, Jul 22, 2010
Filed:
Oct 29, 2009
Appl. No.:
12/608079
Inventors:
Andrew J. Phillips - Charlotte NC, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Yansheng Liu - Lexington KY, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Yansheng Liu - Lexington KY, US
Assignee:
ELECTRIC POWER RESEARCH INSTITUTE, INC. - Charlotte NC
International Classification:
C23G 1/02
US Classification:
134 3, 134201
Abstract:
A conductor cleaning system for cleaning aluminum strands of all aluminum and steel reinforced conductors, such as ACSS, ACSR, ACAR, and AAA. The conductor cleaning system having a container adapted to receive a portion of a conductor to be cleaned, a housing adapted to receive and support the container, and a cleaning solution contained in the container for cleaning the portion of the conductor. The cleaning solution being adapted to clean the conductor without reacting with or damaging the conductor.
Conductor Cleaning System
US Patent:
2010018, Jul 22, 2010
Filed:
Jan 22, 2009
Appl. No.:
12/357610
Inventors:
Andrew Phillips - Charlotte NC, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Assignee:
Electric Power Research Institute, Inc. - Charlotte NC
International Classification:
B08B 3/12, B08B 3/08, B08B 3/10
US Classification:
134 57 R, 134 92, 134 58 R
Abstract:
A conductor cleaning system for cleaning aluminum strands of all aluminum and steel reinforced conductors, such as ACSS, ACSR, ACAR, and AAA. The conductor cleaning system having a container adapted to receive a portion of a conductor to be cleaned, a housing adapted to receive and support the container, and a cleaning solution contained in the container for cleaning the portion of the conductor. The cleaning solution being adapted to clean the conductor without reacting with or damaging the conductor.
Apparatus And Method For Monitoring A Cable
US Patent:
6873746, Mar 29, 2005
Filed:
Aug 2, 2001
Appl. No.:
09/923256
Inventors:
Andrew H. Stewart - Fort Collins CO, US
K. Arun Pandey - Fort Collins CO, US
Glenn M. Light - San Antonio TX, US
Richard F. Tennis - San Antonio TX, US
Bernard A. Clairmont - Adams MA, US
Edward A. Bloom - San Antonio TX, US
Keith A. Bartels - San Antonio TX, US
K. Arun Pandey - Fort Collins CO, US
Glenn M. Light - San Antonio TX, US
Richard F. Tennis - San Antonio TX, US
Bernard A. Clairmont - Adams MA, US
Edward A. Bloom - San Antonio TX, US
Keith A. Bartels - San Antonio TX, US
Assignee:
Electric Power Research Institute, Inc. - Palo Alto CA
International Classification:
G06K009/36, G01L001/26
US Classification:
382291, 73862391
Abstract:
In one embodiment the present invention provides a device for monitoring a cable, comprising an imaging device having a field of view; a target, distinguishable within the field of view of the imaging device, associated with a cable; and a computer processor connected to the imaging device for analyzing images of the target produced by the imaging device to determine a position of the cable. In another embodiment, the present invention provides a method for monitoring a cable, comprising calibrating a first image of a predetermined field of view showing a portion of a cable to be monitored; capturing a second image of the predetermined field of view; correlating the first image with the second image to determine a position of the portion of the cable within the second image; and reporting said position.
Conductor Cleaning System And Method
US Patent:
2013025, Oct 3, 2013
Filed:
May 28, 2013
Appl. No.:
13/903080
Inventors:
Andrew J. Phillips - Charlotte NC, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Yansheng Liu - Lexington KY, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Yansheng Liu - Lexington KY, US
Assignee:
Electric Power Research Institute, Inc. - Charlotte NC
International Classification:
B08B 13/00
US Classification:
134 18
Abstract:
A conductor cleaning system for cleaning aluminum strands of all aluminum and steel reinforced conductors, such as ACSS, ACSR, ACAR, and AAA. The conductor cleaning system having a container adapted to receive a portion of a conductor to be cleaned, a housing adapted to receive and support the container, and a cleaning solution contained in the container for cleaning the portion of the conductor. The cleaning solution being adapted to clean the conductor without reacting with or damaging the conductor.
Conductor Cleaning System And Method
US Patent:
2013025, Oct 3, 2013
Filed:
May 28, 2013
Appl. No.:
13/903062
Inventors:
Andrew J. Phillips - Charlotte NC, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Yansheng Liu - Lexington KY, US
Andrew H. Stewart - Fort Collins CO, US
Neil J. Hurst - Fort Collins CO, US
J. Finley Bush - Leechburg PA, US
Sike Xia - Pearland TX, US
Chenghe Xiao - Lexington KY, US
Yansheng Liu - Lexington KY, US
Assignee:
ELECTRIC POWER RESEARCH INSTITUTE, INC. - Charlotte NC
International Classification:
B08B 3/10
US Classification:
134 34
Abstract:
A conductor cleaning system for cleaning aluminum strands of all aluminum and steel reinforced conductors, such as ACSS, ACSR, ACAR, and AAA. The conductor cleaning system having a container adapted to receive a portion of a conductor to be cleaned, a housing adapted to receive and support the container, and a cleaning solution contained in the container for cleaning the portion of the conductor. The cleaning solution being adapted to clean the conductor without reacting with or damaging the conductor.