Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1989-05-26
1990-07-17
Lindsay, Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 2, 65 12, C03B 3708
Patent
active
049419030
ABSTRACT:
This invention relates to a novel bushing apparatus and nozzles or projecting orifices known as tips for the production of glass fibers. Particularly, it relates to a bushing having tips with cross sections in the form of finite-sided polygons. It has been shown that the use of noncircular tips to produce round fibers can result in higher tip packing densities than are now present in the art and that tips with a square cross section represent the most preferred embodiment. Still, more preferred is the embodiment which is the subject of the instant invention wherein rows of tips are interconnected by an integrally formed rib that increases the bending stiffness of the tip plate and its resistance to high temperature thermal creep.
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patent: 3333933 (1967-08-01), Mitchell
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patent: 4433991 (1984-02-01), Melan et al.
"The Manufacturing Technology of Continuous Glass Fibers", by K. L. Loewenstein, Elsevier Scientific Publishing Company, N.Y., 1973, pp. 61-66; 89-100; 95-97; and 101-106.
Lindsay Robert L.
Maebius Richard E.
PPG Industries Inc.
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