Vacuum valve

US10738895B2 · kind B2 · utility

Assignee

• VAT Holding AG · CH

Inventors

• Florian Ehrne · Feldkirch, AT
• Martin Netzer · Bludenz, AT

Key dates

• Filing date: Jul 25, 2016
• Grant date: Aug 11, 2020
• Expiry date: May 2, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K51/02
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Vacuum valve having a valve housing with first and second valve openings, and a closure unit having first and second plates, a roller support arranged between the plates, multiple roller pairs, each formed from first and second spreading rollers, and a spring. The plates are carried together with the roller support when it moves parallel to a movement direction from the open position into an intermediate position, and an additional movement of the plates in the movement direction is blocked when the roller support moves from the intermediate position into a closed position, during which the spreading rollers move along rising flanks of recesses, and the plates are thus spread apart. Rotational axes of the spreading rollers of each roller pair are offset relative to each other and are spaced apart in the spreading direction by a distance smaller than a sum of the radiuses of the spreading rollers.