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. 23, 1991
Filed:
Sep. 04, 1985
Applicant:
Inventors:
Assignee:
Kernforschungsanlage Julich GmbH, Julich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B / ; C30B / ;
U.S. Cl.
CPC ...
422249 ; 1366171 ; 1366181 ; 13662073 ; 13662074 ;
Abstract
A crystalline bar is drawn by a zone-melting process or from a melt in a crucible utilizing a magnetic suspension housing, in addition to an axial stabilization magnet, a radial stabilizer surrounding the core and including sensors for the radial position of the core-operating controllers for electromagnets surrounding the core to restore the core to its setpoint position. The fully magnetic suspension of the core eliminates friction while allowing enclosure of the crystal growth compartment to improve the quality of the crystal growth process.