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. 28, 2009
Filed:
Jul. 19, 2006
Michael Westphal, Offenbach, DE;
Victor Ringeisen, Riedseltz, FR;
Michael Westphal, Offenbach, DE;
Victor Ringeisen, Riedseltz, FR;
Bruker Biospin GmbH, Rheinstetien, DE;
Abstract
A superconducting magnet configuration with a magnet coil () of inductance L which is disposed in a cryostat () at a cryogenic temperature, for generating a temporally stable magnetic field, in a working volume, which is suitable for NMR measurements, and with current feed lines to an external current source () via which a current of a current strength Ican be supplied, wherein, at a cryogenic temperature, the magnet coil () can be exclusively short-circuited via a switch (), is characterized in that the switch () is normally conducting and comprises a mechanically operable bridge () with an ohmic resistance Rwhich can be predetermined. The inventive magnet configuration ensures straightforward stable permanent operation via a mains supply even at high currents (>1000 A) and also effective discharge of the energy released during a quench.