http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007059336-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1ffe1433b6761e78d8e638195ea17e8a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_204e6219b129cd81d6fe221c7f796ae6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_61a76595ac777989816ba8a7de569da5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01446 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-0146 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-014 |
| filingDate | 2006-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccf40efecf6bf3aa9a8f2a40cbde8882 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd5273e5dd6cf5f2a00a93528ec687b8 |
| publicationDate | 2007-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2007059336-A1 |
| titleOfInvention | Method and apparatus for manufacturing water-free optical fiber preforms |
| abstract | A method and apparatus are described for manufacturing substantially water-free optical fiber preforms by an outside vapor deposition (OVD) process, using a multi-functional apparatus that combines a vertical glass lathe with an OVD sintering system in one machine frame. The method includes steps of flame-sealing a quartz sintering tube to the handle of a porous soot preform made by an OVD process, after its deposition mandrel has been removed. The sintering tube is held in a rotatable chuck and used to feed the preform into a sintering muffle and oven. The open end of this sintering tube is connected through a rotary union above the chuck to a valve assembly that can be used to feed dehydration and sintering gases into the sintering muffle and also to draw a vacuum after sintering has been completed. The apparatus thereafter is used to seal the sintered preform's central aperture by collapsing a section of the sintering tube outside the sintering environment, while the aperture still is under vacuum, without allowing the central aperture to be exposed to ambient atmosphere. The resulting tubular preform thereafter can be processed further by a conventional steps of elongation to form a solid core preform, adding clad glass, and drawing into optical fiber. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9079953-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9327017-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11554978-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11513293-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012288524-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9815893-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10392291-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106630586-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106630586-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2020166706-A1 |
| priorityDate | 2005-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.