Thomas Arthur Farr

US Patent:

6946602, Sep 20, 2005

Filed:

Jun 9, 2004

Appl. No.:

10/864910

Inventors:

Irving Albert Gibbs - Fletcher NC, US
Steven Dale Walker - Etowah NC, US
Thomas Arthur Farr - Candler NC, US
Marcus Eugene Case - Morganton NC, US
Tap Van Pham - Asheville NC, US
Rafael Gutierrez - Asheville NC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H05K005/06

US Classification:

174 523, 174 50, 174 52 R, 174 521, 174 5054, 174 53, 220241, 220242, 220 32, 220 38, 361683, 361725

Abstract:

A housing assembly, structured to enclose a plurality of electrical components and flexible cables, each the electrical component coupled at least one other electrical component or to an input device by the cables, includes a plurality of mounting plate members and a plurality of vertical walls. The plurality of mounting plate members includes at least a bottom mounting plate member and at least one movable mounting plate member. Each mounting plate structured to support one or more electrical components. The plurality of vertical walls include a front wall coupled to, and extending generally perpendicular to, the base plate member, a first side wall coupled to, and extending generally perpendicular to, the base plate member, a second side wall coupled to, and extending generally perpendicular to, the base plate member, a back wall coupled to, and extending generally perpendicular to, the base plate member. The movable mounting plate member is pivotally coupled to the at least one vertical wall and is structured to move between a first, closed position and a second open position. Thus, a plurality of electronic components may be coupled to each plate in the plurality of plates, and whereby the electronic components remain coupled to each other as the movable mounting plates move between the first, closed position and the second, open position.

US Patent:

8395044, Mar 12, 2013

Filed:

Jun 7, 2010

Appl. No.:

12/795275

Inventors:

Irving Albert Gibbs - Mills River NC, US
Paul Mulligan - Yorkville IL, US
Richard B. Ravenell - Greenville SC, US
Thomas A. Farr - Candler NC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H01B 7/00

US Classification:

174 36

Abstract:

An improved cable assembly includes at least a first elongated signal-carrying cable and a protector that has an elongated covering apparatus that is connected with the signal-carrying cable. The covering apparatus has a resilient portion having a number of corrugations. The signal-carrying cable is received within the covering apparatus, and the resilient portion is moved from a free state to a collapsed state. The signal-carrying cable and the covering apparatus are received at least partially in an uncured quantity of potting compound, and the compound is then permitted to cure.

US Patent:

20210351724, Nov 11, 2021

Filed:

May 5, 2020

Appl. No.:

16/866855

Inventors:

- Dubin 4, IE
Thomas A. Farr - Candler NC, US

International Classification:

H02P 1/16

Abstract:

A motor starter apparatus includes an enclosure, a bypass contactor configured to be installed in the enclosure and configured to selectively couple a power source to a motor, and a reduced voltage soft starter (RVSS) circuit assembly (e.g. a wheeled truck) configured to be installed in the enclosure, to be coupled to the power source and to apply a variable voltage to the motor. The bypass contactor is configured to preserve a connection of the bypass contactor to the power source and the motor when the RVSS circuit assembly is removed from the enclosure.

US Patent:

20210066908, Mar 4, 2021

Filed:

Aug 30, 2019

Appl. No.:

16/556970

Inventors:

- Dublin, IE
Thomas A. Farr - Candler NC, US
Hanning Tang - Asheville NC, US

International Classification:

H02H 7/09
H02H 7/08

Abstract:

An apparatus includes a magnetometer-based current sensor (e.g., a Hall-effect or fluxgate-based current sensor) configured to sense a magnetic field generated by a current in at least one conductor connecting a motor drive output to a motor and to responsively produce a first current sense signal and a magnetometer-based voltage sensor (e.g., a Hall-effect or fluxgate-based voltage sensor) configured to sense a magnetic field generated in response to a voltage of the at least one conductor and to responsively produce a first voltage sense signal. The apparatus further includes a signal conversion circuit configured to receive the first current sense signal and the first voltage sense signal and to generate a second current sense input and a second voltage sense input for provision to a current sense input and a voltage sense input, respectively, of a motor protection relay that protects the motor.

US Patent:

20200191878, Jun 18, 2020

Filed:

Dec 18, 2018

Appl. No.:

16/223865

Inventors:

- Dublin, IE
Stan Rex Simms - Arden NC, US
Thomas Arthur Farr - Candler NC, US

International Classification:

G01R 31/42
G01R 31/02
H02J 9/06
H02J 3/18

Abstract:

An apparatus, such as an adjustable frequency drive (AFD), includes an inverter configured to be selectively coupled to a motor in a first mode and an AC line in a second mode and a control circuit configured to operate the inverter as a motor drive in the first mode and as a power compensator in the second mode. The power compensator may provide power factor correction. The control circuit may include a scalar controller configured to control the inverter according to a voltage vs. frequency characteristic determined by a field weakening point reference and the control circuit may vary the field weakening point reference in the second mode. The inverter may have an input coupled to a DC bus and the control circuit may be configured to adjust a frequency of the inverter in the second mode to increase a voltage on the DC bus.

US Patent:

20180278192, Sep 27, 2018

Filed:

Mar 23, 2017

Appl. No.:

15/467711

Inventors:

- Cleveland OH, US
John David Maurin - Arden NC, US
Thomas Arthur Farr - Candler NC, US

International Classification:

H02P 27/06
H02M 3/158
H02M 7/06

Abstract:

An apparatus, such as a variable frequency drive (VFD), includes a rectifier, a DC bus coupled to an output of the rectifier and at least one capacitor coupled to the DC bus. The apparatus further includes a normally-conducting switch coupled to the DC bus and configured to discharge the at least one capacitor in a conducting state and a control circuit configured to control the normally-conducting switch responsive to an input to the rectifier. The control circuit may be configured to control the normally-conducting switch responsive to a voltage at the input of the rectifier. The control circuit may include a regulator circuit having an input coupled to the input of the rectifier and a driver circuit coupled to an output of the regulator circuit and configured to drive a control terminal of the normally-conducting switch.

US Patent:

20180019086, Jan 18, 2018

Filed:

Sep 26, 2017

Appl. No.:

15/715229

Inventors:

- Cleveland OH, US
Thomas Arthur Farr - Candler NC, US
John Austin Cochran - Pisgah Forest NC, US
Irving Albert Gibbs - Mills River NC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H01H 85/38
H01H 85/43

Abstract:

A protection system for an electrical apparatus is disclosed. The protection system includes a baffle assembly and a coating for electrical elements exposed to arc gases. The baffle assembly includes a number of generally planar sidewalls, each sidewall including a first edge surface, a second edge surface, and a third edge surface. The sidewalls are disposed in a spaced, generally parallel configuration defining a number of channels. A first end wall is sealingly coupled to each sidewall first edge. A second end wall is sealingly coupled to each sidewall second edge. A third end wall is sealingly coupled to each sidewall third edge. The terminals of an electrical apparatus are disposed in an aligned set with one set of terminals in each channel. The channels are structured to limit the flow of arc gases across adjacent sets of terminals.

US Patent:

20170338760, Nov 23, 2017

Filed:

Oct 21, 2015

Appl. No.:

15/534508

Inventors:

- CLEVELAND OH, US
THOMAS A. FARR - CANDLER NC, US
RON C. SCHUENEMAN - ARDEN NC, US

Assignee:

EATON CORPORATION - CLEVELAND OH

International Classification:

H02P 13/12
H02H 1/04
H02P 27/06

Abstract:

An electrical system () includes a transformer () coupled to an AC source () that provides a main AC voltage, the transformer having a number of sets of primary windings () and secondary windings (), and a charging module () structured to generate a magnetizing AC voltage. The charging module is structured to selectively provide the magnetizing AC voltage to: (i) one of the number of sets primary windings, or (ii) one of the number of sets secondary windings. The magnetizing AC voltage is such that responsive to the magnetizing AC voltage being provided to one of the sets of primary windings or one of the sets of secondary windings, one or more of the sets of primary windings will be magnetized in a manner wherein a flux of the one or more of the number of primary windings is in phase with the main AC voltage provided from the AC source.