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:
Aug. 25, 2015
Filed:
Jun. 29, 2011
Christian Neumann, Hungen, DE;
Boris Gromann, Aschaffenburg, DE;
Lothar Huefner, Bruchkoebel, DE;
Heinz Bauscher, Langenselbold, DE;
Christian Neumann, Hungen, DE;
Boris Gromann, Aschaffenburg, DE;
Lothar Huefner, Bruchkoebel, DE;
Heinz Bauscher, Langenselbold, DE;
Heraeus Quarzglas GmbH & Co. KG, Hanau, DE;
Abstract
In a known drawing method for producing a cylindrical component from quartz glass, a quartz glass strand () is continuously drawn off from a softened quartz glass composition () vertically downwards in the drawing direction (), a piece () with a weight G is detached from the free end of the strand at a time tand the cylindrical component is produced from the piece (). When the piece () is detached, there may be a sudden reduction in weight, which leads to fluctuations in the thawing-off control. To counteract this, it is proposed according to the invention that a weight compensating force which acts counter to the drawing direction (), increases over time and completely or partially compensates for the weight G of the piece (), is applied to the piece to be detached at a time tbefore t