Raymond T Howard

US Patent:

6693504, Feb 17, 2004

Filed:

Jan 11, 2000

Appl. No.:

09/481480

Inventors:

Gregory L. Snitchler - Shrewsbury MA
Raymond T. Howard - Franklin MA
John P. Voccio - Somerville MA

Assignee:

American Superconductor Corporation - Westborough MA

International Classification:

H01F 700

US Classification:

335216, 505705, 505879

Abstract:

The invention features an internally supported superconducting coil assembly. The invention includes several superconducting windings and at least one internal coil support member that forms a laminate stack alternating between an internal support member and a superconducting winding.

US Patent:

7119644, Oct 10, 2006

Filed:

Feb 28, 2002

Appl. No.:

10/085471

Inventors:

Gregory L. Snitchler - Shrewsbury MA, US
Raymond T. Howard - Franklin MA, US
John P. Voccio - West Newton MA, US
Peter M Winn - Shrewsbury MA, US
James F. Maguire - Andover MA, US
Bruce B. Gamble - Wellesley MA, US
Swarn S. Kalsi - Shrewsbury MA, US

Assignee:

American Superconductor Corporation - Westborough MA

International Classification:

H01F 6/00
H02K 3/46

US Classification:

335216, 310 52, 310214, 310261

Abstract:

A superconducting coil assembly is of the type mounted to a rotor assembly of an electric rotating machine and, in operation, is maintained at cryogenic temperatures while the portion of the rotor assembly is maintained above cryogenic temperatures. The superconducting coil assembly includes at least one superconducting winding wound about a longitudinal axis of the coil assembly and having an inner radial surface defining a bore extending through the coil assembly. The coil assembly also includes at least one support member extending across the bore and mechanically coupled to the portion of the rotor assembly and to opposing portions of the inner radial surface of the at least one superconducting winding.