Methods of and apparatus for fluidic support

A fluidic support device is described that counteracts the gravitational bending moment present in a substrate tube during a modified chemical vapor deposition preform fabrication process. Hence, use of this device results in the production of a straight optical fiber preform. The device includes a...

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Bibliographic Details
Main Authors WILSON, JAMES L, FOLWEILER, ROBERT C
Format Patent
LanguageEnglish
French
German
Published 16.07.1986
Subjects
BEARINGS
BLASTING
CHEMISTRY
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GLASS
HEATING
LIGHTING
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MECHANICAL ENGINEERING
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A fluidic support device is described that counteracts the gravitational bending moment present in a substrate tube during a modified chemical vapor deposition preform fabrication process. Hence, use of this device results in the production of a straight optical fiber preform. The device includes a hemicylindrical annulus section in close proximity to the portion of the substrate tube to be supported, and uses flowing fluid to offset gravity and to center the substrate tube. Gaseous use of the device increases and stabilizes the thermophoretic force without contact by either solid or liquid materials, avoiding any reduction in strength of the finished fiber.
Bibliography:Application Number: EP19850114548