Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With fiber drawing or pulling
Reexamination Certificate
2010-04-05
2011-11-15
Dehghan, Queenie (Department: 1741)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With fiber drawing or pulling
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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Wayback Machine time stamp for disclosure of Haynes International Hastelloy C-2000 Alloy web page retrieved on Jul. 18, 2009.
Arterburn Russell Donovan
Hanna Terry Joe
Johnson Walter Alexander
Thompson Thomas K
Dehghan Queenie
Johns Manville
Touslee Robert D.
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