Robert W Douglass

US Patent:

6566996, May 20, 2003

Filed:

Mar 29, 2000

Appl. No.:

09/537518

Inventors:

Robert Stephen Douglass - Wildwood MO
Matthew Rain Darr - Godfrey IL
Michael Craig Henricks - Ballwin MO

Assignee:

Cooper Technologies - Houston TX

International Classification:

H01H 8530

US Classification:

337243, 337244, 337206, 337265, 439488, 439489, 324550, 340638

Abstract:

A fuse state indicator includes a fuse casing having a transparent lens, a combustible substance disposed adjacent the lens, and a base layer disposed adjacent the combustible substance and having a contrasting color relative to the combustible substance. A secondary fuse indicating circuit is electrically connected to a main fuse circuit in parallel with a main fuse link, and includes a secondary fuse wire link which is disposed adjacent the combustible substance. Heat created upon vaporization of the secondary fuse link ignites the combustible substance and reveals the base layer through the lens after combustion, thereby indicating a state of the fuse as operable or inoperable by the color visible through the lens. Combustion may be assisted with an energetic chemical compound applied to secondary fuse wire link and combustible substance.

US Patent:

6619990, Sep 16, 2003

Filed:

Aug 31, 2001

Appl. No.:

09/945279

Inventors:

Robert S. Douglass - Wildwood MO
Matthew R. Darr - Alton IL
Matthew A. Joiner - Fenton MO

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01R 1368

US Classification:

439621

Abstract:

A short circuit current limiter is disclosed which includes fuse elements configured in one of a folded back configuration or a switch back configuration, a plurality of contact terminals, one contact terminal electrically connected to each end of each fuse element, a terminal base for mechanically mounting the fuse elements and contact terminals, and a cover configured to engage the terminal base to protect the fuse elements.

US Patent:

7391299, Jun 24, 2008

Filed:

Sep 9, 2005

Appl. No.:

11/223618

Inventors:

Robert Lawrence Bender - Wildwood MO, US
Timothy Hamilton Speno - Wildwood MO, US
Michael Craig Henricks - Ballwin MO, US
Robert Stephen Douglass - Wildwood MO, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

G08B 25/00

US Classification:

340292, 340638, 340662

Abstract:

A user interface, method system and program for circuit protector management in an electrical system.

US Patent:

7576635, Aug 18, 2009

Filed:

Sep 12, 2005

Appl. No.:

11/224526

Inventors:

Robert Lawrence Bender - Wildwood MO, US
Timothy Hamilton Speno - Wildwood MO, US
Michael Craig Henricks - Ballwin MO, US
Robert Stephen Douglass - Wildwood MO, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

G08B 25/00

US Classification:

340292, 340638, 340662

Abstract:

A circuit protector signal transmission system, kit and method involves at least one circuit protector defining an interruptible current path therethrough upon an occurrence of specified operating conditions in a circuit, a status element associated with the circuit protector and adapted to monitor an operating state of the current path, an electronic gateway device in communication with the status element and adapted to receive a data signal from the status element corresponding to the operating condition of the current path. The data signal includes location information and identification information for circuit protectors as they operate to interrupt the current paths in an electrical system.

US Patent:

7612654, Nov 3, 2009

Filed:

Sep 9, 2005

Appl. No.:

11/223702

Inventors:

Robert Lawrence Bender - Wildwood MO, US
Timothy Hamilton Speno - Wildwood MO, US
Michael Craig Henricks - Ballwin MO, US
Robert Stephen Douglass - Wildwood MO, US
Joan Leslie Winnett Bender - Chesterfield MO, US
Matthew R. Darr - Godfrey IL, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

G08B 25/00

US Classification:

340292, 340638, 340664

Abstract:

A system and method for circuit protector monitoring and management includes at least one circuit protector defining an interruptible current path therethrough upon an occurrence of specified operating condition in a circuit; a status element associated with the circuit protector and adapted to monitor an operating state of the current path; and an electronic management system in communication with the status element, wherein the management system is adapted to automatically alert and summon responsible personnel when the circuit protector has operated to open the circuit path, and identify the location of the operated circuit protector.

US Patent:

8059005, Nov 15, 2011

Filed:

Sep 9, 2005

Appl. No.:

11/223385

Inventors:

Michael Craig Henricks - Ballwin MO, US
Robert Stephen Douglass - Wildwood MO, US
Joan Leslie Winnett Bender - Chesterfield MO, US
Matthew R. Darr - Godfrey IL, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

G08B 1/08
G08B 13/14
G08B 17/10

US Classification:

340635, 3405391, 3405721, 3405727, 34063612, 34063615

Abstract:

Monitoring assemblies, kits and methods for determining an operational state of a circuit protector in an electrical circuit.

US Patent:

20060077608, Apr 13, 2006

Filed:

Sep 9, 2005

Appl. No.:

11/223484

Inventors:

Timothy Speno - Wildwood MO, US
Michael Henricks - Ballwin MO, US
Robert Douglass - Wildwood MO, US

International Classification:

H02H 3/08

US Classification:

361093100

Abstract:

A multifunctional response tool, method and system for responding to circuit protector events.

US Patent:

20120050935, Mar 1, 2012

Filed:

Aug 16, 2011

Appl. No.:

13/211032

Inventors:

Robert Stephen Douglass - Wildwood MO, US
Hundi Panduranga Kamath - Los Altos CA, US
Piyush K. Saxena - Ballwin MO, US
William Charles Giancola - Ballwin MO, US
Keith Allen Spalding - Fenton MO, US

International Classification:

H02H 5/04
H02H 3/22

US Classification:

361103, 361118

Abstract:

A transient voltage surge suppression device includes a varistor assembly having a compact thickness, and thermal disconnect assembly carrying a separable contact bridge movable along a linear axis to disconnect the varistor element from external circuitry.