Actuator
US7397209B2 · kind B2 · utility
16Cited by
0References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2006 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Aug 29, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2015/1495
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator includes a cylinder, a piston that is disposed in the cylinder and moves by supply and exhaust of working oil to and from the cylinder, a movable rod that is connected to the piston, a screw shaft, at least a part of which is inserted into the movable rod, a nut that is threaded to the screw shaft and moves integrally with the piston, and an electric motor that rotates the screw shaft forward or backward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.