Pivotal positioning servoactuator
US4121498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1977 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Feb 3, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A two-axis positioning servoactuator includes a support, a movable member arranged adjacent the support for independent pivotal movement relative thereto about each of two perpendicular intersecting axes, a pair of differential piston and cylinder actuators operatively interposed between the support and movable member for effecting such angular movement about each of the axes, an electrohydraulic servovalve for each of the actuators and operatively associated therewith to control the same, and means providing a position feedback signal to the corresponding servovalve for effecting controlled movement of the member about each of the axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.