Telescopic actuator
US9651066B2 · kind B2 · utility
1Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2014 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Dec 2, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H25/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a telescopic actuator comprising a rod (4), a hollow lead screw (5), a fixed piston (9) comprising a first tail (10) which extends in the lead screw (5) and a head (11). According to the invention, the actuator comprises a first hydraulic connection channel (16) extending through the first tail (10) to fluidically connect a first chamber (C1) with a source of hydraulic fluid (17), and the channel (16) comprises first damping means suitable for slowing down the rod (4) when the latter is depressed by regulating a hydraulic fluid flow rate in the first channel provoked by the depression of the rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.