Arrangement for carrying out a two-stage linear movement
US5345766A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Jul 12, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/685
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An arrangement for carrying out a two-stage linear movement with a stationary and a movable constructional unit, comprises a hydraulic cylinder and an hydraulic piston preferably in the form of a plunger. The hydraulic piston has a hollow volume which houses a plunger piston which, in turn, rests on a spindle rotated by a servomotor in the movable construct-ional unit. The plunger piston can be displaced axially in the hydraulic piston and also in the hydraulic cylinder by use of the spindle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.