Pneumatic device for fitting cables in a tube
US4783054A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G1/086
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pneumatic device for fitting cables in a tube with improved unit safety in the event of excess pressure, comprises a capsule adapted to be introduced inside a tube and connected to a line used to pull the cable inside the tube. A unit (9) has a connection (20) to a compressed air source and a compressed air outlet connector (18) adapted to be connected in a substantially sealing-tight relationship to one of the ends of the tube. The unit comprises a distributor (19, 23) for distributing compressed air to the outlet connector (18), this distributor co-operating with discharge structure (32, 28, 29) to discharge the compressed air from the unit (9) in the event of an excess pressure downstream of the unit outlet connector (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.