Ferrule and use thereof for cooling a melt spun hollow glass fiber as it emerges from a spinnerette

Patent · 31 December 1976

OSTI ID:862928

Brown, William E ^[1]

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1. Walnut Creek, CA

An improvement in the process of melt spinning thin walled, hollow fibers from relatively low melting glasses results if cooling of the emerging fiber is accomplished by use of a thin layer of gas to transfer heat from the fiber to a ferrule which fits closely to the spinnerette face and the individual fiber. The ferrule incorporates or is in contact with a heat sink and is slotted or segmented so that it may be brought into position around the moving fiber. Thinner walled, more uniform fibers may be spun when this method of cooling is employed.

• Assignee: Dow Chemical Company (Midland, MI)
• Patent Number(s): US 4050915
• OSTI ID: 862928
• Country of Publication: United States
• Language: English

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/65/264/425/
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