Pneumatic actuator apparatus
US4741247A · kind A · utility
24Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Sep 17, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B11/128
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The apparatus disclosed herein provides controlled operation of a pneumatic actuator by effecting charging and discharging of the actuator through an intermediate step volume, the pressure in the step volume being regulated as a respective function of the existing pressure in the actuator during charging and discharging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.