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:
Jan. 13, 2009
Filed:
Apr. 04, 2005
Thomas Maenner, Mitterteich, DE;
Michael Ziegler, Friedenfels, DE;
Franz Ott, Konnersreuth, DE;
Gerd Rosner, Konnersreuth, DE;
Thomas Maenner, Mitterteich, DE;
Michael Ziegler, Friedenfels, DE;
Franz Ott, Konnersreuth, DE;
Gerd Rosner, Konnersreuth, DE;
Schott AG, Mainz, DE;
Abstract
In the method molten glass emerges from an outlet opening of a melt feed. The molten glass is drawn over a shaping body so as to form a hollow drawing bulb. According to the invention, the drawing bulb is drawn over a profile forming body positioned downstream of the shaping body so that inner circumferential surfaces of the drawing bulb are deformed while abutting against outer surfaces of the profile forming body to form the predetermined inner profile. The distance between the shaping body and the profile forming body can be changed to vary the wall thickness of the glass tube.