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.:
Date of Patent:
Jul. 14, 2015
Filed:
Mar. 16, 2012
Applicants:
Hugh Alexander Blakes, Longworth, GB;
Adam Paul Johnstone, Thame, GB;
Inventors:
Hugh Alexander Blakes, Longworth, GB;
Adam Paul Johnstone, Thame, GB;
Assignee:
Siemens PLC, Camberley, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 6/06 (2006.01); H01F 6/02 (2006.01); H01F 6/04 (2006.01); H01F 6/00 (2006.01);
U.S. Cl.
CPC ...
H01F 6/02 (2013.01); H01F 6/003 (2013.01); H01F 6/008 (2013.01); H01F 6/04 (2013.01);
Abstract
In a method and apparatus for maintaining operation of ancillary equipment associated with a superconducting magnet carrying a DC current, the DC current is directed through a DC-to-AC converter, and the magnitude of the current flowing through the superconducting magnet is ramped down at a controlled rate, thereby generating a controlled voltage across a controlled impedance, and powering the ancillary equipment by the controlled voltage and an associated current, and the ramping rate is controlled in order to maintain a required controlled voltage.