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. 12, 2022
Filed:
Dec. 16, 2016
Heraeus Quarzglas Gmbh & Co. KG, Hanau, DE;
Matthias Otter, Hamm, DE;
Walter Lehmann, Leipzig, DE;
Michael Hünermann, Alzenau, DE;
Nils Christian Nielsen, Göllheim, DE;
Nigel Robert Whippey, Seligenstadt, DE;
Boris Gromann, Aschaffenburg, DE;
Abdoul-Gafar Kpebane, Hanau-Mittelbuchen, DE;
Heraeus Quarzglas GmbH & Co. KG, Hanau, DE;
Abstract
The invention relates to a process for preparing a quartz glass body comprising the process steps i.) Providing a silicon dioxide granulate, ii.) Making a glass melt from the silicon dioxide granulate in a melting crucible, and iii.) Making a quartz glass body from at least a part of the glass melt, wherein the melting crucible is comprised in an oven and is made of at least one material comprising tungsten or molybdenum or a combination thereof. The invention further relates to a quartz glass body which can be obtained by this process. Further, the invention relates to a light guide, an illuminant and a formed body, each of which can be obtained by processing the quartz glass body further.