Uday Kumar Sinha

US Patent:

6596945, Jul 22, 2003

Filed:

Sep 9, 1999

Appl. No.:

09/392278

Inventors:

Raburn L. Hughey - Franklin GA
Uday K. Sinha - Carrollton GA
David S. Reece - Carrollton GA
Albert C. Muller - Eidson TN

Assignee:

Southwire Company - Carrollton GA

International Classification:

H01B 1200

US Classification:

1741251, 505886, 505887

Abstract:

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0. 2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

US Patent:

6864430, Mar 8, 2005

Filed:

Jan 30, 2002

Appl. No.:

10/060693

Inventors:

Raburn L. Hughey - Franklin GA, US
Uday K. Sinha - Carrollton GA, US
David S. Reece - Carrollton GA, US
Albert C. Muller - Eidson TN, US

Assignee:

Southwire Company - Carrollton GA

International Classification:

H01B012/00

US Classification:

1741251, 505230

Abstract:

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0. 2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

US Patent:

6867375, Mar 15, 2005

Filed:

Aug 22, 2002

Appl. No.:

10/226177

Inventors:

Raburn L. Hughey - Franklin GA, US
Uday K. Sinha - Carrollton GA, US
David S. Reece - Carrollton GA, US
Albert C. Muller - Eidson TN, US

Assignee:

Southwire Company - Carrollton GA

International Classification:

H01B012/00

US Classification:

1741251, 29599, 505231

Abstract:

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0. 2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

US Patent:

6936771, Aug 30, 2005

Filed:

Oct 2, 2002

Appl. No.:

10/492385

Inventors:

Uday K. Sinha - Carrollton GA, US
Jerry Tolbert - Newnan GA, US

Assignee:

Southwire Company - Carrollton GA

International Classification:

H01B012/00

US Classification:

1741251, 174 154, 174 155, 505163, 505200

Abstract:

Disclosed is a termination that connects high temperature superconducting (HTS) cable immersed in pressurized liquid nitrogen to high voltage and neutral (shield) external bushings at ambient temperature and pressure. The termination consists of a splice between the HTS power (inner) and shield (outer) conductors and concentric copper pipes which are the conductors in the termination. There is also a transition from the dielectric tape insulator used in the HTS cable to the insulators used between and around the copper pipe conductors in the termination. At the warm end of the termination the copper pipes are connected via copper braided straps to the conventional warm external bushings which have low thermal stresses. This termination allows for a natural temperature gradient in the copper pipe conductors inside the termination which enables the controlled flashing of the pressurized liquid coolant (nitrogen) to the gaseous state. Thus the entire termination is near the coolant supply pressure and the high voltage and shield cold bushings, a highly stressed component used in most HTS cables, are eliminated.

US Patent:

6936772, Aug 30, 2005

Filed:

Aug 18, 2004

Appl. No.:

10/920757

Inventors:

Raburn L. Hughey - Franklin GA, US
Uday K. Sinha - Carrollton GA, US
David S. Reece - Carrollton GA, US
Albert C. Muller - Eidson TN, US

Assignee:

Southwire Company - Carrollton GA

International Classification:

H01B012/00

US Classification:

1741251, 29599, 505231

Abstract:

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0. 2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

US Patent:

6972376, Dec 6, 2005

Filed:

Dec 15, 2004

Appl. No.:

11/012623

Inventors:

Raburn L. Hughey - Franklin GA, US
Uday K. Sinha - Carrollton GA, US
David S. Reece - Carrollton GA, US
Albert C. Muller - Eidson TN, US

Assignee:

Southwire Company - Carrollton GA

International Classification:

H01B012/00

US Classification:

1741251, 29599, 505231

Abstract:

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0. 2 %. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

US Patent:

20030183410, Oct 2, 2003

Filed:

Jun 9, 2003

Appl. No.:

10/363008

Inventors:

Uday Sinha - Carrollton GA, US
Raburn Hughey - Franklin GA, US
Jerry Tolbert - Newnan GA, US
Michael Gouge - Oak Ridge TN, US

International Classification:

H01B001/00
H02G001/00

US Classification:

174/068100

Abstract:

On order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of type-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

US Patent:

20040026117, Feb 12, 2004

Filed:

Feb 27, 2003

Appl. No.:

10/363021

Inventors:

David Reese - Carrolton GA, US
Uday Sinha - Carrollton GA, US
Albert Muller - Eidson TN, US

International Classification:

H01B012/00

US Classification:

174/125100

Abstract:

Tape-shaped superconducting wires () include a covering of a stabilizing metal and are wound on a flexible former (). The superconducting wires are laid on the former () at a bending strain of not more than 0.2%. The wires () are laid side-by-side to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer side-by-side to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and imparts flexibility to the cable.