Partial vacuum operation of arc discharge for controlled heating
US9554420B2 · kind B2 · utility
2Cited by
1References
27Claims
0Family size
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Key dates
| Filing date | Apr 8, 2013 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12195
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrical discharge, suitable for heating optical fibers for processing, is made in a controlled partial vacuum, such that saturation of available ionizable gas molecules is reached. The workpiece temperature is thereby made to be a stably controlled function of the absolute air pressure and is insensitive to other conditions. A system and method accomplishing the foregoing are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.