Patents by Inventor Wolfgang Ruzek

Wolfgang Ruzek 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).

  • Heat exchanger for a process gas
    Patent number: 4494484
    Abstract: The heat exchanger is constructed with a single pressure vessel to contain the ducts for the hot gas flow and the heating surfaces for the secondary medium. The heat exchanger is provided with a central duct for the hot process gas and two parallel branch ducts through which sub-flows of the process gas pass. A throttle member is provided in at least one of the branch ducts in order to throttle the flow of hot gas therethrough. Additional hot gas can be bypassed from the duct section into the exhaust gas from the pressure vessel.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: January 22, 1985
    Assignee: Sulzer Brothers Limited
    Inventor: Wolfgang Ruzek