Fluid actuators with LVDT feedback mechanisms
US4841844A · kind A · utility
14Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1982 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Jul 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19702
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid actuator characterized by a linear variable differential transformer (LVDT) feedback mechanism driven off the actuator screw shaft for indicating actuator position. A protective clutch mechanism prevents possible damage to the LVDT or actuator in the event that the actuator stroke exceeds the design stroke of the LVDT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.