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:
Jun. 22, 1993
Filed:
Dec. 09, 1991
Wolfgang H Muller, Karlsruhe, DE;
Gerhard Roth, Karlsruhe, DE;
Wolfgang Stautner, Stutensee-Buchig, DE;
Peter Turowski, Leopoldshafen, DE;
Wolfgang Lehmann, Leopoldshafen, DE;
Franz Graf, Karlsruhe, DE;
Bruker Analytische Messtechnik GmbH, both of, DE;
Kernforschungszentrum Karlsruhe GmbH, both of, DE;
Abstract
In an NMR magnet system for generating a highly homogeneous magnetic field of high field strength, with at least one superconducting magnet coil which is arranged in a first chamber of a cryostat in supercooled liquid helium at a temperature of less than 4.2K, with the cryostat having at least one further chamber containing liquid helium that is essentially at atmospheric pressure with a temperature of approximately 4.2K, the first chamber is connected to the further chamber in such a way that the supercooled liquid helium located in the first chamber is also essentially at atmospheric pressure. A refrigerator with which the liquid helium can be cooled to a temperature T<<4.2K, especially to T.apprxeq.1.8-2.3K, is provided in the first chamber.