Patent · US Expired

Device and process for the remelting of glass

US6802189B2 · kind B2 · utility

2Cited by

9References

4Claims

0Family size

Assignee

Schott Glas · DE

Inventors

Andreas Langsdorf · Ingelheim am Rhein, DE
Hildegard Römer · Karben, DE
Paul Kissl · Mainz, DE

Key dates

Filing date	Dec 27, 2000
Grant date	Oct 12, 2004
Priority date	—
Expiry date	Aug 23, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B37/085
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process for the remelting of glass bars, including the steps of introducing a glass bar into an upper end of a receiving shell; providing a molten bath having a surface underneath the receiving-shell; positioning the receiving shell such that a lower edge of the receiving shell is located at the height of the surface or above it; heating a lower end of the glass bar to a temperature above a softening temperature of the glass, resulting in a melt-off process at the lower end of the glass bar to produce a melt stream; controlling the melt-off process such that the melt stream continuously enters the molten bath proximate the surface with avoidance of a constriction; and drawing off melt from the molten bath by means of an arrangement for drop generation.

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