Lifting unit, luffing jib crane comprising such a lifting unit and method for assembling such a crane
US10752474B2 · kind B2 · utility
0Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2016 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C2700/0392
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lifting unit includes a jib foot forming a proximal part of a jib in a service configuration, a counter jib supporting a balancing ballast, a securing part between the jib foot and the counter jib to secure the lifting unit to a mast, and a cylinder connected to the jib foot such that the jib foot is movable between a lowered position and a lifted position. A second cylinder is connected to the securing part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.