Fail safe linear actuator system
US5301505A · kind A · utility
13Cited by
9References
5Claims
0Family size
Inventor
Key dates
| Filing date | Dec 4, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Dec 4, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B20/002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fail safe hydraulic system which includes a pressurized fluid storage which is capable of delivering fluid to the actuator to return it to its inoperative position should the actuator system suffer a loss of power and a apparatus for signaling a controller when the pressurized fluid storage has been charged with fluid, wherein fluid from the reservoir cannot be delivered to the actuator until the pressurized fluid storage has been charged with fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.