Franklin Lambert

US Patent:

7720620, May 18, 2010

Filed:

Jan 23, 2006

Appl. No.:

11/337630

Inventors:

Ronald Gordon Harley - Lawrenceville GA, US
Deepakraj M. Divan - Marietta GA, US
Franklin Cook Lambert - Palmetto GA, US
Joy Mazumdar - Atlanta GA, US

Assignee:

Georgia Tech Research Corporation - Atlanta GA

International Classification:

G01R 21/00
G06F 13/00

US Classification:

702 60, 702181, 702182, 702188

Abstract:

A system and method for determining non-linear load harmonics impact on the voltage distortion at the point of common coupling is disclosed. Briefly described, one embodiment is a method comprising metering voltage on an electric power system; metering current on the electric power system; determining a predicted voltage based upon the metered current; comparing the predicted voltage with the metered voltage; and determining a harmonic voltage component using a plurality of weights determined when the predicted voltage converges with the metered voltage.

US Patent:

7722951, May 25, 2010

Filed:

Oct 15, 2004

Appl. No.:

10/966963

Inventors:

Jun Li - Atlanta GA, US
Lianhua Fan - Atlanta GA, US
Ching-Ping Wong - Berkeley Lake GA, US
Franklin Cook Lambert - Palmetto GA, US

Assignee:

Georgia Tech Research Corporation - Atlanta GA

International Classification:

B32B 15/00

US Classification:

428379, 428375, 428372, 428399, 428400, 174 40 R, 174113 R, 174137 R

Abstract:

The present invention is a method of applying Lotus Effect materials as a (superhydrophobicity) protective coating for external electrical insulation system applications, as well as the method of fabricating/preparing Lotus Effect coatings. Selected inorganic or polymeric materials are applied on the insulating material surface, and stable superhydrophobic coatings can be fabricated. Various UV stabilizers and UV absorbers can be incorporated into the coating system to enhance the coating's UV stability.

US Patent:

8206776, Jun 26, 2012

Filed:

Apr 2, 2010

Appl. No.:

12/753146

Inventors:

Jun Li - Atlanta GA, US
Lianhua Fan - Atlanta GA, US
Ching-Ping Wong - Berkeley Lake GA, US
Franklin Cook Lambert - Palmetto GA, US

Assignee:

Georgia Tech Research Corporation - Atlanta GA

International Classification:

B05D 5/12
H05H 1/24

US Classification:

427117, 427118, 427569, 427575

Abstract:

Methods of reducing pollution problems in power lines systems are disclosed herein. In one embodiment, the method comprises applying Lotus Effect materials as a (superhydrophobicity) protective coating for external electrical insulation system applications. Further disclosed are methods of fabricating/preparing Lotus Effect coatings. Selected inorganic or polymeric materials are applied on the insulating material surface, and stable superhydrophobic coatings can be fabricated. Various UV stabilizers and UV absorbers can be incorporated into the coating system to enhance the coating's UV stability. Other aspects, features, and embodiments are also discussed and claimed.

US Patent:

20050057265, Mar 17, 2005

Filed:

Sep 14, 2004

Appl. No.:

10/940101

Inventors:

Ronald Harley - Lawrenceville GA, US
Franklin Lambert - Palmetto GA, US
Joy Mazumdar - Atlanta GA, US

International Classification:

H02M001/12

US Classification:

324658000

Abstract:

A system and method for determining harmonics caused by non-linear loads are disclosed. Briefly described, one embodiment is a method comprising metering voltage on an electric power system; metering current on the electric power system; determining a predicted current based upon the metered voltage; comparing the predicted current with the metered current; and determining a harmonic current component using a plurality of weights determined when the predicted current converges with the metered current.

US Patent:

20090011222, Jan 8, 2009

Filed:

Dec 13, 2006

Appl. No.:

11/610111

Inventors:

Yonghao Xiu - Atlanta GA, US
Lingbo Zhu - Atlanta GA, US
Dennis W. Hess - Atlanta GA, US
Ching Ping Wong - Berkeley Lake GA, US
Fei Xiao - Atlanta GA, US
Robert N. Hampton - Peachtree City GA, US
Franklin C. Lambert - Palmetto GA, US

Assignee:

Georgia Tech Research Corporation - Atlanta GA

International Classification:

B05D 3/12
B05D 3/00
B05D 3/02
B05D 1/02
B05D 1/18
B32B 1/00
B32B 33/00

US Classification:

428323, 427299, 4274301, 427240, 4274211, 4273722, 4284111

Abstract:

The present invention is a method of applying Lotus Effect materials as a (superhydrophobicity) protective coating for various system applications, as well as the method of fabricating/preparing Lotus Effect coatings.

US Patent:

20130151187, Jun 13, 2013

Filed:

Jul 27, 2011

Appl. No.:

13/813142

Inventors:

Deepakraj M. Divan - Marietta GA, US
Rohit Moghe - Atlanta GA, US
Franklin Lambert - Palmetto GA, US

Assignee:

GEORGIA TECH RESEARCH CORPORATION - Atlanta GA

International Classification:

G01R 19/00
G01R 27/26
G06F 11/30

US Classification:

702 65, 324654

Abstract:

The present invention describes systems and methods for determining current flow through a current-carrying utility asset. An exemplary embodiment can include measuring a first magnetic induction value at a first location near a targeted current-carrying utility asset and a second magnetic induction value at a second location near the targeted asset where the first location is a known distance from the second location; determining a correlation between a spatial angle and an electrical phase angle between the targeted asset and a second asset where the second asset contributes a first and second error component to the first and second magnetic induction values respectively; estimating error values for the first and second error components using the correlation between the spatial angle and the electrical phase angle; and estimating a current flowing through the targeted asset using the first and second magnetic induction values, the known distance, and the error values.

US Patent:

20130170264, Jul 4, 2013

Filed:

Jul 27, 2011

Appl. No.:

13/813635

Inventors:

Deepakraj M. Divan - Marietta GA, US
Rohit Moghe - Atlanta GA, US
Franklin C. Lambert - Palmetto GA, US

Assignee:

GEORGIA TECH RESEARCH CORPORATION - Atlanta GA

International Classification:

H02M 7/12

US Classification:

363126

Abstract:

The present invention describes systems and methods for harvesting energy from an alternating magnetic field. An exemplary embodiment can include a flux concentrator having an open core coil wherein a first current with a first voltage is induced in the flux concentrator when placed proximate an alternating magnetic field. Additionally, the system can include a transformer, having a first and second winding, connected to the flux concentrator and inducing a second current in the second winding, wherein the second current has a second voltage higher than the first voltage and a threshold voltage of a first and second diode. Furthermore, the system can include a converter, connected to the secondary winding for charging the leakage inductance of the secondary winding by creating a short circuit between the secondary winding and the converter; and the diodes connected to the secondary winding and the converter for discharging the leakage inductance.

US Patent:

20150077088, Mar 19, 2015

Filed:

Apr 17, 2013

Appl. No.:

14/394107

Inventors:

- Atlanta GA, US
Rohit Moghe - Atlanta GA, US
Franklin C. Lambert - Palmetto GA, US
Amrit Iyer - Atlanta GA, US

International Classification:

G01R 19/25
H04B 3/46

US Classification:

324 7611

Abstract:

An exemplary embodiment of the present invention provides a floating voltage sensor system comprising a metallic enclosure, a conductive sensor plate, a signal conditioning circuit, and a microcontroller unit. The metallic enclosure can be configured for electrical communication with an asset carrying a voltage. The conductive sensor plate can be positioned adjacent to a surface of the metallic enclosure, such that the conductive plate and the surface of the metallic enclosure are not in contact with each other. The signal conditioning circuit can comprise a first connection point and a second connection point. The first connection point can be in electrical communication with the conductive sensor plate. The second connection point can be in electrical communication with the metallic enclosure. The microcontroller unit can be configured to receive an output of the signal conditioning circuit and measure the voltage of the asset.