Method of fabricating dual hole glass ferrules
US7467528B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jun 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3885
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.