Patents by Inventor Uwe Thomsen

Uwe Thomsen 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).

  • Patent number: 5046530
    Abstract: A force-balanced lifting valve for the control of a fluid, comprises a housing having paths for the fluid, an axially movable component in the form of a valve body provided on a shaft mounted so as to be axially movable in the housing, for the opening and closing a valve opening, and a sealing structure for sealing the axially movable component with respect to the housing. The valve body has associated therewith a force-balancing compensation area, which can be acted upon by pressure fluid by way of a subsidiary channel. The sealing structure comprises an elastic, axially effective sealing ring which sealingly engages the valve housing and the axially movable valve component, such that a radial portion of the ring rests axially and sealingly against at least one abutment shoulder on the axially movable valve component.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: September 10, 1991
    Assignee: H. Kuhnke GmbH KG
    Inventors: Matthias Gossner, Joachim Trenkmann, Lutz Bungeroth, Uwe Thomsen, Peter Leu