Forming glass sheets with improved shape stability

Details Forming glass sheets with improved shape stability Forming glass sheets with improved shape stability

2006-11-30

2010-10-26

Lazorcik, Jason L (Department: 1791)

Glass manufacturing

Processes

Forming product or preform from molten glass

C065S193000

Reexamination Certificate

active

07818980

ABSTRACT:
Systems, methods, apparatus and products relate to display glass from curved glass ribbons, to improve shape stability in glass ribbons, to creation of reduced stress glass ribbons, and to creation of improved shape stability and reduced stress of display glass, which may include forming slightly a curved glass ribbon in a fusion draw machine (FDM). One or more embodiments may include an isopipe having a desired curvature; an isopipe having a desired incline; an offset draw device operable to draw the glass ribbon in an inclined ribbon draw direction; one or more air jets or vacuum operable to apply air pressure to a first side of the glass ribbon, thereby creating a pressure differential on the first side; and/or one or more electrostatic force generators operable to apply electrostatic force to a first side of the glass ribbon, thereby generating an electric field differential across the glass ribbon.

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