Autonomous hydraulic expansion and contraction apparatus
US10138982B2 · kind B2 · utility
1Cited by
5References
2Claims
0Family size
Inventor
Key dates
| Filing date | Oct 8, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An autonomous hydraulic expansion and contraction apparatus comprises a fixing unit, a cylinder unit, a support unit, a piston unit, a valve unit and oil supply parts. By controlling the expansion and contraction length of the support part by a simple manipulation of the valve part by moving the lever, the autonomous hydraulic expansion and contraction apparatus can be easily expanded and contracted to the combined length of the expansion and contraction equipment, and additionally, the convenience of use can be enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.