Robert S 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:

6650222, Nov 18, 2003

Filed:

Nov 19, 2001

Appl. No.:

09/992852

Inventors:

Matthew Rain Darr - Alton IL
Robert Stephen Douglass - Wildwood MO

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01H 8520

US Classification:

337187, 337189, 337255, 361833

Abstract:

A fuseholder includes a main housing configured for receiving a plurality of cartridge fuses, a fuse drawer configured for slidable insertion into the main housing, and a handle coupled to the drawer for opening the drawer to release fuses from the main housing. The drawer includes a retractable handle that is substantially flush with the drawer when the drawer is closed. A handle recess is located adjacent the drawer for prying the handle open with a tool. A drawer frame includes a lock opening therethrough for a lock member to prevent closing of the fuse drawer as desired. Built-in fuse rejection members are included in the main housing to prevent use of incorrect fuses with the fuseholder and an auxiliary contact actuator is provided for added features on an as needed basis.

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:

7474194, Jan 6, 2009

Filed:

Nov 15, 2005

Appl. No.:

11/274003

Inventors:

Matthew R. Darr - Godfrey IL, US
Robert Stephen Douglass - Wildwood MO, US
Matthew Thomas Dowil - Washington MO, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01H 9/10
H01H 21/16

US Classification:

337 72, 337 8, 337 59, 337 62, 337 70, 337 61

Abstract:

A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and switchable contacts for connecting the fuse to circuitry. A tripping mechanism is provided to disconnect the switchable contacts when predetermined circuit conditions occur.

US Patent:

7495540, Feb 24, 2009

Filed:

Sep 9, 2005

Appl. No.:

11/222628

Inventors:

Matthew R. Darr - Godfrey IL, US
Robert Stephen Douglass - Wildwood MO, US
Matthew Thomas Dowil - Washington MO, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01H 9/10
H01H 21/16

US Classification:

337 72, 337 8, 337 59, 337 62, 337 70, 337 61, 337143

Abstract:

Fusible switch disconnect modules including a housing means adapted to receive at least one fuse therein, switchable contacts for connecting the fuse to circuitry and having at least one stationary contact and at least one movable contact selectively positionable between an open position and a closed position to connect or disconnect an electrical connection through the fuse, and a means for biasing or bias element assisting movement of the movable contact to the open or disconnected position.

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.