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:
Nov. 29, 1977
Filed:
May. 19, 1976
Applicant:
Inventors:
Heinz Herzer, Burghausen, DT;
Helmut Zauhar, Burghausen, DT;
Assignee:
Wacker-Chemitronic Gesellshaft fur Elektronik Grundstoffe mbH, Burghausen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2327 / ; 156620 ; 2483 / ; 2483 / ; 269237 ; 2693 / ;
Abstract
Device for supporting a crystalline rod during crucible-free zone melting ich comprises a zone-drawing apparatus, a rotating shaft in said apparatus, means for fastening the shaft in the apparatus, a screw bolt mounted for rotation with the shaft, the top end of the screw bolt having a bore for receiving a seed crystal, two or more swivel arms mounted adjacent to the bore and capable of being opened and closed, a ring coaxially surrounding the bolt and means for vertically moving the ring.