Return mechanism of an actuating drive
US4802403A · kind A · utility
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4References
1Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 23, 1986 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Sep 23, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B13/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In an actuating drive for valves, the stroke motion of the servo piston has to be transmitted to the return sleeve in the control block, so that this results in that hydraulic feedback which restores the equilibrium at the servo piston. By means of a lever or a single-point mounting, this same stroke motion is directly transmitted to a pin attached in an eccentric position relative to the center axis of the return sleeve and transmitted from this pin to the return sleeve adjoining thereunder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.