Cooling apparatus for fiberizing bushings and method

Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With fiber drawing or pulling

Reexamination Certificate

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Details

C065S498000, C065S512000, C065S511000

Reexamination Certificate

active

08056371

ABSTRACT:
This invention involves apparatus and methods for making fibers by passing a molten material like glass, polymer, etc. through orifices or tips in a fiberizing bushing and then cooling the molten material coming from the tips and newly formed fibers using cooling tubes. The cooling tubes are made from precious metals and various alloys comprising precious metals, nickel and one or more of titanium, chromium, molybdenum, etc. The one or more fins attached to the top surface of a hollow tube to make the cooling tubes contain spaced apart gaps, notches and/or slots extending from the top edge of the fin to prevent warping of the fins and to make the cooling tube more bendable, adjustable during the operation of making fibers from molten material.

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Haynes Internatonal, Hastelloy C-2000 Alloy, 4 pages, Mar. 15, 2006.
Wayback Machine time stamp for disclosure of Haynes International Hastelloy C-2000 Alloy web page retrieved on Jul. 18, 2009.

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