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.

Date of Patent:
Jun. 18, 1996

Filed:

Nov. 10, 1994
Applicant:
Inventors:

Xianrui Huang, Forest, VA (US);

Joseph A Waynert, Forest, VA (US);

Charles M Weber, Forest, VA (US);

Minfeng Xu, Forest, VA (US);

Assignee:

The Babcock & Wilcox Company, New Orleans, LA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ; B60L / ;
U.S. Cl.
CPC ...
335216 ; 335296 ; 335297 ; 310 12 ; 104285 ; 104286 ;
Abstract

An electromagnetic system for a magnetic levitation vehicle comprises a 'W' shaped magnet core having a center pole wound by a superconducting coil and side poles on opposite sides of the center pole, each wound by an ambient temperature coil. Quasi-dc power is supplied to the central superconducting coil for levitation of the vehicle with respect to a rail along which the vehicle is meant to move. The ambient temperature coils are connected in series to each and other and powered with ac power for trimming and controlling the gap between the magnet and the rail.


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