Patents by Inventor Berhard Duelli

Berhard Duelli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vacuum valve and closure member for closing a flow path in a gas-tight manner by means of a linear movement
    Patent number: 9528614
    Abstract: A vacuum valve closes a flow path in a gas-tight manner using a linear movement and includes a closure member, a first sealing surface of the valve housing that encloses the opening, and a corresponding second sealing surface of the closure member. In the closed position, the second sealing surface is in sealing contact with the first sealing surface. In the region between the opening and the first sealing surface, the valve housing includes a first sloped surface that encloses the opening, and the closure member includes a corresponding, parallel second sloped surface. The sloped surfaces, which have a sloping angle between 3 and 15 degrees relative to the geometric adjustment axis, are located such that, in the closed position of the closure member, the second sloped surface is arranged in a parallel position opposite the first sloped surface at a distance of 0 and 0.6 mm.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: December 27, 2016
    Assignee: VAT HOLDING AG
    Inventors: Friedrich Geiser, Anton Neumeir, Berhard Duelli, Thomas Blecha, Karlheinz Summer
  • VACUUM VALVE AND CLOSURE MEMBER FOR CLOSING A FLOW PATH IN A GAS-TIGHT MANNER BY MEANS OF A LINEAR MOVEMENT
    Publication number: 20140158924
    Abstract: A vacuum valve closes a flow path in a gas-tight manner using a linear movement and includes a closure member, a first sealing surface of the valve housing that encloses the opening, and a corresponding second sealing surface of the closure member. In the closed position, the second sealing surface is in sealing contact with the first sealing surface. In the region between the opening and the first sealing surface, the valve housing includes a first sloped surface that encloses the opening, and the closure member includes a corresponding, parallel second sloped surface. The sloped surfaces, which have a sloping angle between 3 and 15 degrees relative to the geometric adjustment axis, are located such that, in the closed position of the closure member, the second sloped surface is arranged in a parallel position opposite the first sloped surface at a distance of 0 and 0.6 mm.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 12, 2014
    Applicant: VAT HOLDING AG
    Inventors: Friedrich Geiser, Anton Neumeir, Berhard Duelli, Thomas Blecha, Karlheinz Summer