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. 07, 2018
Filed:
Dec. 18, 2015
Schott Ag, Mainz, DE;
Bernhard Hunzinger, Wackernheim, DE;
Doris Moseler, Budenheim, DE;
Frank Buellesfeld, Kriftel, DE;
Ulrich Lange, Mainz, DE;
SCHOTT AG, Mainz, DE;
Abstract
A method for producing a glass film is provided. The method includes: heating a portion of a glass preform so that in the heated portion the glass has a viscosity of less than 10dPa·s, or drawing a glass from a melt; withdrawing the glass using a drawing device, wherein in case of drawing from a preform the drawn glass film is thinner than the glass preform; heating at least one point by means of a laser, the point being located in an edge region of the drawn glass film that is being formed by withdrawing the glass, wherein at the site of the laser focus the glass has a viscosity of not more than 10dPa·s before the laser is switched on and wherein heating is performed in such a manner that at least one notch is provided in parallel to the drawing direction.