Patents by Inventor Joseph W. M. Koch

Joseph W. M. Koch 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).

  • Shaft melting furnace for melting metals
    Patent number: 4687438
    Abstract: A shaft melting furnace for melting metals is proposed with an interior receiving the molten bath, a charging shaft for supplying the melting stock and a burner supplying heat to the latter. The charging shaft is funnel-shaped and passes into a melting zone of constant cross-section leading to a melting bridge.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: August 18, 1987
    Assignee: W. Strikfeldt & Koch GmbH
    Inventors: Gunther Schmidt, Joseph W. M. Koch