Robert Alan Douglass

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:

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:

7812704, Oct 12, 2010

Filed:

Nov 14, 2007

Appl. No.:

11/939981

Inventors:

Matthew R. Darr - Godfrey IL, US
Jaime A. Torrez - Ofallon MO, US
Anthony C. Ban - Foley MO, US
Robert S. Douglass - Wildwood MO, US
John M. Ackermann - Belleville IL, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01H 85/30

US Classification:

337243, 337241, 337206, 337265, 116206, 116207, 324507, 324550, 340638

Abstract:

A fuse comprising a fuse body having ferrules at opposing ends, a fuse state indicator located on the surface of the fuse body wherein the fuse state indicator may be temperature sensitive or voltage sensitive and a wire extending from one ferrule to the other ferrule wherein the wire is positioned along the surface of the fuse body. The fuse state indicator senses heat generated by the wire or voltage flowing through the wire.

US Patent:

7825766, Nov 2, 2010

Filed:

Jul 25, 2008

Appl. No.:

12/179811

Inventors:

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

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01H 85/24

US Classification:

337198, 337186, 337187

Abstract:

A fuse and fuse module that facilitate ampacity rejection based on electrical contact location is disclosed. A configuration of electrical contacts in the fuse and a corresponding configuration of fuse slots in the fuse holder permit fuses within an acceptable range of ampacities to be installed in the fuse holder while at the same time preventing fuses within an unacceptable range of ampacities from being installed in the fuse holder.

US Patent:

7924136, Apr 12, 2011

Filed:

Nov 24, 2008

Appl. No.:

12/277051

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, 337 66

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:

7932805, Apr 26, 2011

Filed:

Aug 25, 2010

Appl. No.:

12/868298

Inventors:

Matthew R. Darr - Godfrey IL, US
Jaime A. Torrez - O'Fallon MO, US
Anthony C. Ban - Foley MO, US
Robert S. Douglass - Wildwood MO, US
John M. Ackermann - Belleville IL, US

Assignee:

Cooper Technologies Company - Houston TX

International Classification:

H01H 85/30

US Classification:

337243, 337241, 337206, 337265, 116206, 116207, 324507, 324550, 340638

Abstract:

A fuse includes a fuse state indicator on the exterior surface of the fuse body. The fuse state indicator includes an electrically conductive element electrically connected to and extending between the terminal elements. A temperature sensitive element proximate and in thermal contact with the electrically conductive element includes material capable of changing color when heated to a predetermined transition temperature to form a mark on the temperature sensitive element. The fuse state indicator forms a first mark on the temperature sensitive element when heat from the electrically conductive element transfers to the temperature sensitive element in response to a first overcurrent condition, and forms a second mark, distinct from the first mark, on the temperature sensitive element when heat from the electrically conductive element transfers to the temperature sensitive element in response to a second overcurrent condition distinct from the first overcurrent condition.

US Patent:

48313530, May 16, 1989

Filed:

Sep 30, 1987

Appl. No.:

7/103243

Inventors:

Aldino J. Gaia - St. Louis MO
Frank Suher - Chesterfield MO
Robert Douglass - Kirkwood MO
Arlie Ehlmann - Barnhart MO
Angelo Urani - Ellisville MO

Assignee:

Cooper Industries, Inc. - Houston TX

International Classification:

H01H 8514
H01H 8522

US Classification:

337255

Abstract:

An automobile fuse (10) for use in extreme temperature conditions such as the engine compartment of an automobile. Fuse (10) is a blade-type fuse with loads (42, 44) on fusible element (40) providing time delay characteristics to match the insulation damage curves of small diameter automobile cable harnesses. The lower portions of terminals (20) and (30) have been selectively plated with silver. The outer housing (50) has been laser etched.