Method of fabricating dual hole glass ferrules

Details Method of fabricating dual hole glass ferrules Method of fabricating dual hole glass ferrules

2002-10-18

2008-12-23

Hoffmann, John (Department: 1791)

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

C065S395000, C065S435000, C065S017200, C065S108000

Reexamination Certificate

active

07467528

ABSTRACT:
The present invention relates to a preform for a glass ferrule and a fabrication method thereof. It is an objective of the present invention to fabricate dual hole ferrules having various distances between two holes by using a single preform. It is another objective of the present invention to fabricate a preform for a dual hole glass ferrule by a simple process. To meet the above and other objectives, the present invention provides a preform for a glass ferrule, comprising two holes which are formed through the preform and exit out both side cross-sections of the preform, wherein the two holes are symmetrical to the center in a diameter direction of the preform and a distance between the two holes changes in a lengthwise direction of the preform.

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