Power cylinder having external stroke adjustment mechanism
US4406110A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1980 |
| Grant date | Sep 27, 1983 |
| Priority date | — |
| Expiry date | Oct 1, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The stroke of an air driven power cylinder is controlled through a load means attached to the piston rod, a control valve means connected to the cylinder to control air exhaust from the cylinder on the extension stroke of the piston, and an external cushion valve means operably connects to the control valve means and the load means for air exhaust flow therethrough in a controlled manner but for shut-off of the air exhaust as the piston approaches the end of its stroke to trap some air in the cylinder before the piston stroke ends, the cushion valve means having a member therein of adjustable position for control of the length of stroke of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.