Vacuum valve
US5651528A · kind A · utility
6Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Apr 28, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K51/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vacuum valve has a valve stem with a magnetic drive for moving the valve stem in the opening direction of the valve. A piston configuration is connected to the valve stem and is enclosed within a double-cylinder configuration. Overflow or inflow/outflow lines connected between the two chambers of the double-cylinder configuration, contain flow conductance value setting elements such as valves or filters, for setting a damping effect on movement of the piston configuration, thus damping movement of the valve stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.