Patents by Inventor Gerhard Kapell

Gerhard Kapell 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).

  • Furnace for the melting and refining of copper
    Patent number: 4200265
    Abstract: A furnace for the melting and refining of raw copper and/or blister copper comprises a shaft furnace having a lock-chamber feeder for the material at the top of the shaft furnace and an opening into a hearth furnace in which the copper is refined. The shaft furnace and the hearth furnace are constructed unitarily with one another with the shaft furnace surmounting the hearth furnace in such manner that, when the apparatus has been charged, a pile of copper is formed which is supported on the bottom of the hearth furnace and slopes toward a portion of the length of the hearth furnace.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: April 29, 1980
    Assignee: Norddeutsche Affinerie
    Inventors: Gerhard Berndt, Gerhard Kapell, Anton Schummer, Jens U. Hansen