Patents by Inventor Hans Jonas

Hans Jonas 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: 4369683
    Abstract: Discharging device for an extrusion press, including a frame being movable in the axial direction of the press; a first part being connected to the frame and adjustable in height, the first part including a substantially flat plate and cutting means; a second part being movable relative to the frame and being adjustable in height, the second part including a horizontally disposed axle, a conveyor belt being suspended from the axle and tiltable about the axis of the press, and a coupling for the conveyor belt; a coupling rod for the cutting means being engageable with the coupling for periodically connecting the cutting means to the conveyor belt; and a continuously variable drive driving the conveyor belt.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: January 25, 1983
    Assignee: Sigri Elektrographit GmbH
    Inventors: Hartmut Bieg, Hans Jonas, Heinz Rosswurm, Wilhelm Demmer, Ludwig Dobel
  • Patent number: 4001487
    Abstract: System for supplying current to a group of high-current resistance furnaces including a plurality of transformers switchingly connectible sequentially to the individual furnaces singly and together in parallel, the group of furnaces being subdivided into two subgroups of furnaces, each having one of said transformers associated therewith, and including a third transformer selectively switchingly connectible in parallel to the one and the other of the two subgroups of furnaces.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: January 4, 1977
    Assignee: Sigri Elektrographit GmbH
    Inventors: Otto Schumacher, Hans Jonas