Process and Device for Manufacturing Flat Sheets of a Glass-Based Material
First Claim
1. A method of drawing flat sheets of glass-based material comprising:
- delivering a glass-based material (10) from a delivery system (16) to a reservoir (24) between two porous walls (12), the reservoir having a vertical length (L), a horizontal width (W) between side edges (22, 22′
) of the walls and including a gap (14) between the walls which varies along the vertical length of the reservoir, the material being separated from the walls by a gas film (28);
drawing the glass-based material in a sheet from an outlet of the reservoir; and
wherein a flow of the glass-based material delivered to the reservoir is varied across the width of the reservoir.
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Accused Products
Abstract
The present invention relates to a process for manufacturing flat sheets of a glass-based material and to a device associated with the process. The process comprises delivering the glass-based material (10) from a delivery system (16) to a reservoir (24) between two porous walls (12), the reservoir having a vertical length (L), a horizontal width (W) between side edges (22, 22′ of the walls and including a gap (14) between the walls which varies along the vertical length of the reservoir, the material being separated from the walls by a gas film (28), drawing the glass-based material in a sheet from an outlet of the reservoir, and wherein a flow of the glass-based material delivered to the reservoir is varied across the width of the reservoir, or wherein the gap (14) varies across the horizontal width (w) of the reservoir (24)
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Citations
20 Claims
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1. A method of drawing flat sheets of glass-based material comprising:
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delivering a glass-based material (10) from a delivery system (16) to a reservoir (24) between two porous walls (12), the reservoir having a vertical length (L), a horizontal width (W) between side edges (22, 22′
) of the walls and including a gap (14) between the walls which varies along the vertical length of the reservoir, the material being separated from the walls by a gas film (28);drawing the glass-based material in a sheet from an outlet of the reservoir; and wherein a flow of the glass-based material delivered to the reservoir is varied across the width of the reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of drawing flat sheets of a glass-based material comprising:
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delivering a glass-based material (10) from a delivery system (16) to a reservoir (24) between two porous walls (12), the reservoir having a vertical length, a horizontal width between side edges (22, 22′
) of the walls and including a gap (14) between the walls which varies along the vertical length of the reservoir, the material being separated from the walls by a gas film (28);drawing the glass-based material in a sheet from an outlet of the reservoir; and wherein the gap varies across the horizontal width of the reservoir. - View Dependent Claims (14)
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15. An apparatus for drawing flat sheets of a glass-based material comprising:
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a reservoir comprising porous walls (12), the walls defining a gap (14) therebetween for accommodating a flow of the glass-based material, the gap varying over at least a portion of a vertical length of the reservoir; and wherein the apparatus includes opposing rollers (50) rotatably mounted adjacent side edges (22, 22′
) of the reservoir for drawing the sheet of glass-based material. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification