Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1988-03-25
1989-10-24
Lacey, David L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 313, 65121, 65145, 264 17, C03C 2502, C03B 526, C03B 714, B29D 1100
Patent
active
048759171
ABSTRACT:
Layered glass products such as multilayer glass rods or fibers are formed in a preferably continuous process wherein at least two component glasses are supplied to an annular mixing zone wherein relative movement of the annular surfaces produces spiral layering of the glasses and the formation of a glass product stream having a preselected gradient in composition and glass properties across a diameter thereof.
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Corning Incorporated
Johnson L.
Lacey David L.
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