Patents by Inventor Silvan Fehlisch

Silvan Fehlisch 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).

  • Method of reducing noise during throttling of vapor and gas streams
    Patent number: 4310069
    Abstract: A method of reducing noise during the throttling of vapor and gas streams by supercritical expansion, followed by dividing the streams during deceleration.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: January 12, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Kolb, Otto Ziegert, Silvan Fehlisch
  • Control valve having a disc shaped throttle
    Patent number: 4274439
    Abstract: The invention relates to a throttling valve with low noise. The passage of fluid is controlled by an aperture between parallel discs, which can be turned around special axes for altering the distance between them.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: June 23, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Kolb, Silvan Fehlisch, Otto Ziegert, Hans Bender, Manfred Schmitt
  • Control valve having a low noise throttling device
    Patent number: 4180100
    Abstract: The invention relates to a control valve for throttling in which is provided simple structural elements in the outlet section for having a low noise characteristic.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: December 25, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Kolb, Silvan Fehlisch, Otto Ziegert, Hans Bender, Manfred Schmitt