Adjustable valve linkage
US4836497A · kind A · utility
50Cited by
15References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Mar 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6099
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve actuator mechanism for supplying a selectively adjustable close-off force to an associated valve. The mechanism comprises a means for urging the valve plunger into engagement with the valve seat with a predetermined initial force and resistive means for generating a resistive force such that the close-off force is less than the initial by a predetermined amount. The resistive force can be selectively adjusted also.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.