The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7619345 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 17, 2009

Filed:

Jan. 30, 2006
Applicants:

Swarn S. Kalsi, Shrewsbury, MA (US);

Dariusz Antoni Bushko, Hopkinton, MA (US);

Inventors:

Swarn S. Kalsi, Shrewsbury, MA (US);

Dariusz Antoni Bushko, Hopkinton, MA (US);

Assignee:

American Superconductor Corporation, Westborough, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A stator coil assembly includes a cylindrical support tube with first and second pluralities of stator coils disposed radially around the support tube. Each stator coil includes first, second, third, and fourth linear segments, each having first and second planar broad sides. The second and fourth linear segments extend in parallel along a first axis with the first and second broad sides of the second and fourth linear segments lying in a common plane. The first and third linear segments extend in parallel along a second axis perpendicular to the first axis. Transition segments having first and second planar broad sides each join a pair of linear segments. The transition segments of the first and second pluralities of stator coils define curvatures toward and away from the center axis, respectively, such that the first and third linear segments are disposed at a substantially equal radial distance from the center axis.


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