Optical cable installation with cable lubricator
US6848541B2 · kind B2 · utility
15Cited by
27References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2002 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Jul 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G1/086
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cable is installed in a guide tube by means of blowing (and, optionally, synergetic pushing) and lubricating the cable during this installation. Lubricating the cable is done after the cable has passed the cable blowing equipment and hence takes place in a pressurized airflow passage. A hollow chamber filled with foam-plugs saturated with lubricant forms the cable lubricator. To avoid buckling, cable guide blocks are placed, which also divide the lubricator in different sub-chambers, each with its own foam-plug and content of lubricant. The airflow, needed to propel the cable during blowing, can bypass the lubricator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.