发明名称 |
Vacuum valve |
摘要 |
A valve, in particular a vacuum valve, in which, in order to close a passage opening, in particular of the valve, at least one closure member can be moved by a valve drive, starting from a maximum open position, in which the closure member opens the passage opening at least partially, first on a first partial path into an intermediate position, and the closure member can be moved, starting from the intermediate position, on at least one second partial path which is angled away from the first partial path into a closed position, in which the closure member closes the passage opening, the valve drive having at least two cylinder spaces which are loadable in each case with a pressure medium, at least one piston being mounted displaceably in each of the cylinder spaces, and the pistons being supported on one another by way of at least one prestressing element. |
申请公布号 |
US9038985(B2) |
申请公布日期 |
2015.05.26 |
申请号 |
US201314068092 |
申请日期 |
2013.10.31 |
申请人 |
VAT Holding AG |
发明人 |
Frehner Hanspeter;Zanetti Claudio |
分类号 |
F16K31/122;F16K51/02;F16K3/18 |
主分类号 |
F16K31/122 |
代理机构 |
Volpe and Koenig, P.C. |
代理人 |
Volpe and Koenig, P.C. |
主权项 |
1. A valve for closing at least one passage opening, comprising:
at least one closure member that is movable by a valve drive, starting from a maximum open position, in which the closure member opens the passage opening at least partially, first of all on a first partial path into an intermediate position, and the closure member is movable, starting from the intermediate position, on at least one second partial path which is angled away from the first partial path into a closed position, in which the closure member closes the passage opening, the valve drive having at least two cylinder spaces which are loadable in each case with a pressure medium, wherein at least one piston is mounted displaceably in respective ones of the cylinder spaces, and the pistons are supported on one another by at least one prestressing element. |
地址 |
Haag CH |