Patents by Inventor Heinz Dieter Hannes

Heinz Dieter Hannes 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).

  • Sliding gate
    Patent number: 5817246
    Abstract: A sliding gate valve comprising a chamber (22), a stationary mounted plate (2) and a sliding plate (1) that is movable in relation to said stationary plate, and sliding plate being supported within a slide frame (20) that is movable in relation to the chamber (22), and of spring elements (10) which press the sliding plate against the stationary plate (2). The slide frame (20) has a shape in the form of a trough, of which the upper longitudinal edges (17) protrude laterally outwardly and form slide surfaces (18) that correspond to the slide surfaces (19) of the chamber during operation.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: October 6, 1998
    Assignee: USX Corporation
    Inventors: Kurt Flossdorf, Heinz Dieter Hannes, Josef Lothmann