Patent · US Expired

Method and device for retaining and transporting flat glass in a contactless manner

US7107792B2 · kind B2 · utility

10Cited by

10References

24Claims

0Family size

Assignee

Schott AG · DE

Inventors

Andreas Langsdorf · Ingelheim am Rhein, DE
Ruediger Sprengard · Mainz, DE
Sybill Nuettgens · Frankfurt, DE
Ulrich Lange · Mainz, DE

Key dates

Filing date	Sep 8, 2001
Grant date	Sep 19, 2006
Priority date	—
Expiry date	Oct 2, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B35/24
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The method of supporting and transporting hot flat glass on a gas bed for ceramicizing includes arranging a number of spaced-apart porous or perforated planar segments to form a base with a gas-permeable support surface so that slits, which are narrower than the planar segments, are formed between them, forcing gas through the porous or perforated planar segments and conducting the gas away through the slits between them so as to form the gas bed with no static pressure zones and with a parabolic pressure distribution and producing a predetermined temperature profile for ceramicizing through which the hot flat glass is transported on the gas bed without deformation and without any contact between it and the base. The resulting glass ceramic has smoother surfaces without pits or deformations.

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