Drive device
US6543223B2 · kind B2 · utility
45Cited by
4References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Mar 14, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/6651
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive device comprising a closed hydraulic circuit which has a hydraulic drive adapted to be actuated by hydraulic medium and has a hydraulic pump responsible for the supply and removal of the hydraulic medium to and from the hydraulic drive. For the operation of the hydraulic pump an electric motor is provided. The activation of the hydraulic drive is controlled by the operational state of the hydraulic pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.