Conveying glass tubing
AssigneeCorning Incorporated
InventorsDavid L. Ashley, John M. Dafin, Michael R. Heslin, Jason S. Watts, Paul A. Williams
Life of this patent
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Abstract
A runway for conveying glass tubing, as the tubing is drawn from a source of molten glass, embodies support assemblies having rotating sleeves mounted on guide shafts to contact the tubing. A circulating humid atmosphere is maintained in an enclosure during an initial potion of the tube draw to reduce frictive damage to the tubing.
Claims9
A method of drawing glass tubing which comprises passing the tubing through an enclosure into which air and water are introduced to provide a humid atmosphere that is continuously circulated through the enclosure, drawing the tubing over a tube draw within the enclosure, the enclosure extending to a point on the tube draw where the glass has cooled sufficiently to avoid frictive damage.
Dependencies are inferred from the claim text.