Cable-laying apparatus provided with a safety system and method for stopping said cablelaying apparatus safely
US11522349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2016 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H59/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus to lay cables, comprising a work unit bearing at least a pair of capstans to support the cables and provided with a safety device cooperating with the pair of capstans; a winding and unwinding unit for the cables, provided with a dynamic braking device cooperating with a reel for winding and unwinding the cables; an adjustment and safety hydraulic circuit in which a work fluid flows and with which the following are associated: a first power transmission unit to transmit power to the work unit and to pump the work fluid toward the safety device and toward said dynamic braking device, a second motorized braking unit of the work unit cooperating with a third command unit of the safety device, and a fourth regulation unit to regulate the winding and unwinding unit comprising at least a motorized counter-traction valve of the winding and unwinding unit and cooperating with said power transmission unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.