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:
Jun. 15, 2010
Filed:
Oct. 04, 2007
Rudolf Mueller, Bingen, DE;
Horst Loch, Niedernhausen, DE;
Dirk Sprenger, Stadecken-Elsheim, DE;
Jose Zimmer, Lasheim am See, DE;
Holger Wegener, Alfeld, DE;
Rudolf Mueller, Bingen, DE;
Horst Loch, Niedernhausen, DE;
Dirk Sprenger, Stadecken-Elsheim, DE;
Jose Zimmer, Lasheim am See, DE;
Holger Wegener, Alfeld, DE;
Schott AG, Mainz, DE;
Abstract
The method of making thin glass panes includes conveying a glass melt through a vertical inlet to a drawing tank with a slit nozzle; drawing a glass ribbon downward from the slit nozzle; setting a total throughput by setting length and cross section of the inlet and by heating and cooling the inlet to control glass melt viscosity so that pressure in the inlet decreases; and setting a throughput per unit of length in a lateral direction along the glass ribbon via nozzle system geometry and by heating and cooling of the drawing tank and slit nozzle to control melt viscosity, so that glass does not wet an underside of the slit nozzle near a breaking edge. The setting of the total throughput and the throughput per unit length are largely decoupled to simplify process control. An inventive apparatus for performing the method is also disclosed.