Patents by Inventor Wolfram Schwarze

Wolfram Schwarze 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).

  • Plug valve with a spring biased plug
    Patent number: 9115812
    Abstract: In a plug valve with a plug supported around its axis of rotation in a flow passageway of the valve housing, the plug is supported in a floating manner against a spring force pressing the plug against an annular sealing element. The spring force is provided by a spring element bearing against the valve housing and engaging with a trunnion of the plug. The sealing element is supported in a fixed position against a flow passage opening.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: August 25, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Majid Bakhshi, Joerg Gassmann, Wolfram Schwarze