Removal Of Bubbles From Molten Glass
OwnerSteve w. Martin, Ryan s. Gebhardt +3inventors
InventorsSteve w. Martin, Ryan s. Gebhardt, Steven Kmiec, Jose Ezequiel De Sousa, Seila Rojas De Sousa
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Abstract
A method for removing bubbles from molten glass is provided and involves subjecting the surface of the molten glass to at least one fining sequence wherein the fining sequence comprises subjecting the surface of the molten glass to a sub-atmospheric pressure (relative vacuum less one atmosphere of pressure) for a time followed by subjecting the surface of the molten glass to super-atmospheric gas pressure (greater than one atmosphere of pressure) for additional time. The fining sequence can be repeated as needed to produce a high quality optically clear glass that is substantially free of bubbles.
Claims11
A method for fining molten glass, comprising subjecting a surface of molten glass to at least one fining sequence comprising subjecting the surface of the molten glass to a sub-atmospheric pressure followed by subjecting the surface of the molten glass to a super-atmospheric gas pressure.
Dependencies are inferred from the claim text.