Glass manufacturing – Fiber making apparatus – With specified bushing – tip – or feeder structure
Patent
1999-02-24
2000-02-08
Hoffmann, John
Glass manufacturing
Fiber making apparatus
With specified bushing, tip, or feeder structure
65502, C03B 37023
Patent
active
060216492
ABSTRACT:
A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not concentric with respect to each other and the respective core and cladding glass melts passed out of contact with each other to a glass melt contacting zone proximate a fiber drawing orifice in which the cladding glass surrounds the core glass and a core/clad glass fiber is drawn. This process enables the clad glass fiber to be drawn directly from core and cladding glass rods without the need for a preform or forming a melt from glass chards or chunks, thereby reducing the cost of producing the fiber and also producing a glass clad optical fiber of high purity and excellent concentricity. Chalcogenide glass fibers having a concentricity of 100% have been made.
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Aggarwal Ishwar D.
Mossadegh Reza
Pureza Pablo
Sanghera Jasbinder S.
Delmendo Romulo H.
Edelberg Barry A.
Hoffmann John
The United States of America as Represented by the Secretary of
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