Patents by Inventor Paul Karing

Paul Karing 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).

  • Device for regulating the differential pressure between two different pressure points of a fluid circuit
    Patent number: 4098285
    Abstract: The device comprises a case in which there are provided an inlet orifice connected to the first point of pressure, a fluid return orifice and a passage of variable section interposed between these orifices. A slide valve member is movably mounted in the case for regulating the passage section in accordance with the differential pressure of the two points of pressure, in opposition to the action of an opposing spring. A detecting chamber is provided in the case and connected to the second point of pressure. The detecting chamber is separated from the inlet orifice by a sealing device having a section which varies in accordance with the displacement of the slide valve member and on which sealing device the differential pressure acts.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: July 4, 1978
    Assignee: Bronzavia
    Inventor: Paul Karing