Wheeled hydraulic jack with suspensory lifting device
US6902147B2 · kind B2 · utility
1Cited by
3References
11Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Aug 12, 2003 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Nov 6, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F5/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A wheeled hydraulic jack with a suspensory lifting device comprises a hydraulic unit, two pivotal cantilever arms and two movable tension links each pivotally mounted on each of the pivotal cantilever arms. The free end of each movable tension link is connected with one end of a cross-wise shaft of the hydraulic unit. A piston of the hydraulic unit moves upwardly and bears against the cross-wise shaft to lift a loading terminal of the pivotal cantilever arms by a suspensory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.