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:
Feb. 25, 2003
Filed:
Dec. 21, 2000
Ulrich Nerreter, Nuremberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A magnetic resonance apparatus having a single-circuit cooling circulation system operated with a coolant for cooling a gradient coil system so that a temperature of at least one surface of the gradient coil system remains within a prescribable temperature range. The cooling circulation system has a performance that corresponds to the average ohmic dissipated power of the gradient coil system, contains a heat exchanger that can be at least switched on and off and exhibits a high-frequency on/off switching clock. The gradient system exhibits a high average specific heat capacity and the cooling fluid exhibits an operating temperature range that proceeds beyond the prescribable temperature range.