Patent · US Active

Method and apparatus for reducing the camber in thin glasses

US11312649B2 · kind B2 · utility

1Cited by

4References

10Claims

0Family size

Assignee

Schott AG · DE

Inventors

Andreas Ortner · Gau-Algesheim, DE
Thomas Rossmeier · Bodenheim, DE
Jürgen Vogt · Oberheimbach, DE
Marius Necel · Harxheim, DE

Key dates

Filing date	Sep 13, 2016
Grant date	Apr 26, 2022
Priority date	—
Expiry date	Nov 2, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/57
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for producing thing glass strips is provided that avoids camber defects. The method includes using a glass strip forming device that has a drawing device; drawing, using the drawing device, the thin glass strip away from the glass strip forming device; measuring, using a measuring device, variables that are dependent on a differing length of edges of the thin glass strip at at least two measurement locations spaced apart transversely to a longitudinal extension of the thin glass strip; determining a difference or a quotient of the variables. The difference or the quotient is used to determine a control variable by which the glass strip forming device is controlled so as to counteract a difference in velocities of the thin glass strip between the two opposite edges.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.