Thomas Joseph Tobin

US Patent:

6777043, Aug 17, 2004

Filed:

Apr 3, 1998

Appl. No.:

09/054986

Inventors:

Mark W. Stavnes - Lake Zurich IL
Jeffrey A. Moore - Lake Zurich IL
Thomas J. Tobin - Northbrook IL

Assignee:

S C Electric Co. - Chicago IL

International Classification:

H01H 8508

US Classification:

428 342, 156169, 156173, 156175, 428 363, 428 364, 428 369, 428365

Abstract:

An arc-quenching composition is provided including a filler, a fiber and a binder. Preferably, the filler includes an arc-quenching compound such as melamine. The binder includes a thermosetting resin to facilitate forming of the arc-quenching composition into an arc-quenching fuse tube. In a preferred arrangement, an outer tube is formed over the arc-quenching fuse tube to provide an overall high-strength fuse tube. Also in a preferred arrangement, in order to provide a fuse tube that is capable of operation over an extremely wide current range, the inner arc-quenching tube includes a tapered bore. According to one fabrication technique, the outer tube is formed over the arc-quenching inner tube before the curing of the inner tube such that a single structure results.

US Patent:

7122917, Oct 17, 2006

Filed:

Mar 23, 2003

Appl. No.:

10/395439

Inventors:

Andrew D. Pfister - Rolling Meadows IL, US
Todd W. Klippel - Oak Park IL, US
Raymond P. O'Leary - Evanston IL, US
Thomas J. Tobin - Northbrook IL, US

Assignee:

S & C Electric Co. - Chicago IL

International Classification:

H02J 1/00
H02J 3/00

US Classification:

307 83, 307 43

Abstract:

A control method and arrangement is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices to optimize operation of the power electronic system. Further, electrically isolated power supplies to individual control stages for high-voltage, series-connected switch devices/power electronic devices.

US Patent:

7279654, Oct 9, 2007

Filed:

Feb 1, 2006

Appl. No.:

11/345934

Inventors:

Michael G. Ennis - Evanston IL, US
Thomas J. Tobin - Northbrook IL, US

Assignee:

S&C Electric Co. - Chicago IL

International Classification:

B23K 10/00

US Classification:

21912148, 21912136, 73862325, 324117 H

Abstract:

A current sensor for installation on a conductor without breaking the conductor may include an insulating base having a conductor supporting portion and a conductive coil disposed within an outer surface of the insulating base. A magnetically permeable conductor retaining member includes a portion that passes through the coil and is secured to the insulating base. The retaining member defines a conductor receiving aperture portion with the aperture portion being disposed adjacent the conductor supporting portion of the insulating base. With a conductor positioned within the aperture portion, the conductor is secured by the retaining member to the conductor receiving portion of the insulating base and a substantially continuous permeable path is formed by the conductor retaining member about the conductor.

US Patent:

20040081782, Apr 29, 2004

Filed:

Dec 8, 2003

Appl. No.:

10/729585

Inventors:

Mark Stavnes - Lake Zurich IL, US
Jeffrey Moore - Lake Zurich IL, US
Thomas Tobin - Northbrook IL, US

International Classification:

B65D001/00

US Classification:

428/036300, 428/036100

Abstract:

An arc-quenching composition is provided including a filler, a fiber and a binder. Preferably, the filler includes an arc-quenching compound such as melamine. The binder includes a thermosetting resin to facilitate forming of the arc-quenching composition into an arc-quenching fuse tube. In a preferred arrangement, an outer tube is formed over the arc-quenching fuse tube to provide an overall high-strength fuse tube. Also in a preferred arrangement, in order to provide a fuse tube that is capable of operation over an extremely wide current range, the inner arc-quenching tube includes a tapered bore. According to one fabrication technique, the outer tube is formed over the arc-quenching inner tube before the curing of the inner tube such that a single structure results.

US Patent:

20090290275, Nov 26, 2009

Filed:

Oct 3, 2006

Appl. No.:

12/091338

Inventors:

Douglas M. Staszesky - Glenview IL, US
Raymond P. O'Leary - Evanston IL, US
Thomas J. Tobin - Northbrook IL, US

Assignee:

S & C Electric Co. - Chicago IL

International Classification:

H02H 7/30

US Classification:

361 63

Abstract:

A fault protection system for an electrical power distribution system and a method of configuring and operating a fault protection system for an electrical power distribution system accepts device fault protection parameters, such as the time-current-characteristics (TCCs), of boundary devices, and selects and sets fault protection parameters for one or more fault protection devices, such as fault-interrupters, that thus coordinate with the boundary devices. Fault protection parameter selection for each fault protection device may occur automatically, and each device may reconfigure its fault protection parameters based upon changes in the electrical power distribution system, for example, as the result of fault isolation and/or service restoration.

US Patent:

46907807, Sep 1, 1987

Filed:

Jul 1, 1986

Appl. No.:

6/880867

Inventors:

Leonard V. Chabala - Maywood IL
John Haarsma - Barrington IL
Raymond P. O'Leary - Evanston IL
Christopher D. Roman - Glenview IL
Thomas J. Tobin - Northbrook IL

Assignee:

S&C Electric Company - Chicago IL

International Classification:

H01B 320

US Classification:

252572

Abstract:

An improved insulating material is provided. The insulating material is a mixture of an insulating fluid and solid insulative bodies. The insulating material exhibits desirable insulating, conformal coating, surface adhesion, and low-viscosity characteristics. For example, when the insulating material is used to fill the cavity of a hollow insulator, the insulating material prevents any moisture that enters the insulator from adhering to the walls that define the cavity; thus maintaining the insulating qualities of the insulator. In the event that some of the fluid is lost through leakage, the insulating material also aids in preserving the insulating qualities of the insulator.

US Patent:

40286568, Jun 7, 1977

Filed:

Nov 19, 1975

Appl. No.:

5/633487

Inventors:

E. William Schmunk - Park Ridge IL
Thomas J. Tobin - Morton Grove IL

Assignee:

S & C Electric Company - Chicago IL

International Classification:

H01H 8520

US Classification:

337186

Abstract:

A cylindrical sleeve having annular flanges is formed of irradiated terpolymers of ethylene, propylene, and a diene monomer (EPDM) material. The sleeve is then expanded, but the irradiated EPDM material has a "memory" which tends to cause it to return to its original dimension when heated to a predetermined elevated temperature. The expanded sleeve is positioned over the body of a current limiting fuse and heated so that the sleeve shrinks back to tend to assume its original dimension thereby sealing the sleeve around the body of the fuse. The inside surface of the sleeve may be coated with a thermosetting plastic sealing coating which softens at the elevated temperature further aiding in sealing between the fuse body and the sleeve. The sleeve may be heated in a vacuum oven to ensure that air is not trapped between the body of the fuse and the sleeve.

US Patent:

42825040, Aug 4, 1981

Filed:

Sep 10, 1979

Appl. No.:

6/073667

Inventors:

Thomas J. Tobin - Northbrook IL

Assignee:

S&C Electric Company - Chicago IL

International Classification:

H01H 8520

US Classification:

337186

Abstract:

An improved housing for a high-voltage device which may be subjected to rough handling during installation and to high internal pressure during operation. A flexible, thick outer enclosure is molded about an inner, thin reinforcing layer which has interstices and high tensile strength. The molding locks the enclosure to the layer as the material of the former enters the interstices. The flexibility of the enclosure protects the housing and the device from the effects of rough handling. The flexibility of the enclosure also ensures that it is deformed or stretched sufficiently by high pressures accompanying device operation to ensure that the layer is loaded in tension. Loading the layer in tension ensures that the housing does not fracture or violently rupture.