Ferrule holder for fiber optic connector
US5436994A · kind A · utility
Inventors
Key dates
| Filing date | Feb 26, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Feb 26, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3863
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved fiber optic connector of the type in which a fiber supporting ferrule is slidably and resiliently biased independently of the surrounding load-bearing parts of the connectors so that forces applied to the fiber optic cable jacket are not transmitted to the ferrule and supported fiber to interrupt communications then in progress. The connector is substantially fully assembled prior to interconnection with the cable, and requires the introduction of an epoxy or other suitable adhesive to secure the fiber within the ferrule which is provided by a syringe. The needle of the syringe is inserted into a positioning tube which confines the adhesive to the needed area, and prevents wicking of the adhesive to surrounding areas where it might interfere with the sliding action of the ferrule. It also wipes the needle of adhesive as it is withdrawn. A rear body element of the connector is provided with internal threads which surround the cable jacket, which, during a crimping operation, causes the jacket to deform into the threads for superior cable retention. A buffer protection tube is provided which is inserted onto the end of the cable between the buffer and the load-bearing str…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.