Apparatus for on-site connection of cables with optical fibres
US4108534A · kind A · utility
Inventors
Key dates
| Filing date | Jan 25, 1977 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Jan 25, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/564
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for on-site connection of two transmission cables comprising optical fibres, each cable having a protective armouring enclosing a central core provided with regularly spaced grooves on its periphery. Each groove holds a fibre provided with a thin sheath of uniform thickness. After the end of one of the cables has been bared over a given length, the uncovered fibres are moved towards the exterior and secured to a holder surrounding the cable. Thereafter the core is cut perpendicularly to its axis and a grooved portion of an extension core is secured thereto; the fibres are bent back into the grooves in the said portion, and the core portion and the fibres which it bears are cut and subsequently coated with a lubricant. The same operations are performed on the end of the other cable and the two cables are clamped together under a predetermined pressure. Various devices for on-site connection of cables with optical fibres are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.