Patents by Inventor Hans U. Feustel

Hans U. Feustel 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).

  • Process and device for melting iron metallurgical materials in a coke-fired cupola
    Patent number: 5632953
    Abstract: A coke-fired cupola, including: a furnace shaft having a well at one end, a charging device connected to the shaft, a lower-mouth exhaust connected to the shaft below the charging device, and a furnace gas exhaust ring arranged at the shaft below the charging device and the lower-mouth exhaust. Additionally, at least one nozzle is connected to the shaft above the well. The at least one nozzle has a centrally run oxygen lance. A gas recirculating circuit is provided for connecting the furnace gas exhaust ring to the at least one nozzle. The gas recirculating circuit includes an exhaust device connected to the furnace gas exhaust ring, a recirculating gas ring connected to the at least one nozzle and a recirculating gas duct connected between the exhaust device and the recirculating gas ring.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: May 27, 1997
    Assignees: Hans U. Feustel, Joachim Mallon, Michael Schaaf
    Inventors: Hans U. Feustel, Joachim Mallon, Michael Schaaf, Edmund Wilms, Gerhard Neumann, Karl-Heinz Kohler, Ludwig Ruschitzka