Patent ID: 8393177
Filing Date: 2013-03-12
Classification: C03B,Y02P

Abstract:
1. A method for conveying molten glass comprising passing the molten glass through a conduit having an entrance and an exit, wherein: (A) the conduit comprises: (B) the entrance and exit sections are substantially straight; (C) the intermediate section is angled or curved; and (D) more heat is applied to the intermediate section than to either the entrance or exit sections, wherein: (a) molten glass leaving the exit is conveyed to forming apparatus of an overflow downdraw process; (b) a desired cross-sectional temperature distribution at the exit is defined that affects the mass, thickness, and/or temperature distribution of molten glass on the surface of the forming apparatus; and (c) the heating and/or insulating specified in (D) produces a cross-sectional temperature distribution at the exit that approximates the desired cross-sectional temperature distribution.