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:
Apr. 02, 2013
Filed:
Apr. 23, 2010
Guy Aubert, Poitiers, FR;
Guy Aubert, Poitiers, FR;
Abstract
A magnetic resonance imaging system having an exterior cryogenic enclosure containing a device for creating an intense main magnetic field in a usable interior tunnel space an RF exciter, a set of solenoid gradient windings in a cylindrical space around the interior tunnel space and electronic control circuits. The cryogenic enclosure includes an interior cylindrical space vacuum at room temperature having the set of windings therein, at least one thermal screen in a temperature range of 20° K to 80° K, a cold box below 5° K, and a former supporting the exciter for creating an intense main magnetic field. To reduce acoustic noise and cryogenic losses, an additional envelope is between the set of windings and the vacuum enclosure, the additional envelope being of a conductive material having electrical resistivity at least 7×10Ω·m and having a characteristic frequency no more than the characteristic frequencies of each of the other components of the exterior cryogenic enclosure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile