Vacuum valve
US8657256B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jan 7, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K3/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vacuum valve, including a valve housing, which has a passage having an axis, a seat that surrounds the passage and that lies in a first plane, and a counter seat that surrounds the passage and that lies in a second plane that forms a wedge shape with the first plane, and including a closure device, which can be moved between an open position in which the passage is released and a closed position in which the passage is sealed and which has a closure plate parallel to the first plane and a counter plate parallel to the second plane, and including a valve rod, which has a longitudinal axis and which carries the closure device and which can be moved in a straight line. In order to spread apart the closure plate and the counter plate, the closure device includes a spreading unit, which lies between the closure plate and the counter plate and which can be moved in the closing direction of the valve rod relative to the closure plate and the counter plate, and a support part, which is movably guided relative to the spreading unit and which is connected to the closure plate and/or the counter plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.