Patents by Inventor Freidrich Geiser

Freidrich Geiser 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
    Patent number: 8657256
    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.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: February 25, 2014
    Assignee: VAT Holding AG
    Inventor: Freidrich Geiser
  • VACUUM VALVE
    Publication number: 20120298904
    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.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 29, 2012
    Applicant: VAT HOLDING AG
    Inventor: Freidrich Geiser