Patents by Inventor Friedrich Wilhelm Warnecke

Friedrich Wilhelm Warnecke 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).

  • Method of independently adjusting the fuel mixture composition and melting rate of multiburner shaft furnaces for melting metals
    Patent number: 4065250
    Abstract: A method of independently adjusting the fuel mixture composition and heating rate for a multiburner shaft furnace for the melting of metal, particularly copper and its alloys, fed in lump form to the shaft furnace, in which the burners are supplied with air and fuel gas and the heating rate is adjusted by controlling the pressure of one of the components of the fuel mixture (air or gas) in the manifold for supplying this component to a group of burners. The other fuel mixture component has its pressure controlled in its manifold by a single controller constituted by a pressure ratio controller.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: December 27, 1977
    Assignee: Norddeutsche Affinerie
    Inventors: Heinrich Schliefer, Friedrich Wilhelm Warnecke