Patents by Inventor Emil Herre

Emil Herre 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).

  • Charging electro furnaces
    Patent number: 4702461
    Abstract: An electro furnace for metallurgic operations has its top connected to a vertically extending cylinder, into which a charge pipe leads at an oblique angle. A ceramic plug glides in the cylinder in piston like fashion for selective opening and closing the opening from said charge pipe. Any burden and ore mixture will therefore fall freely from the charge pipe whenever the plug is shifted up to open the gate.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: October 27, 1987
    Assignee: Mannesmann AG
    Inventors: Emil Herre, Gerd Herre, Guenter Zimmer, Hermann Cepin