Patents by Inventor Tette Hof

Tette Hof 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 operating a mixer type hot metal car for the transport of molten iron and a device for carrying out the method
    Patent number: 4524954
    Abstract: A hot metal car is used for the transport of molten pig iron from a blast furnace to a steel making plant, the car having an opening through which it is filled and emptied. To restrict heat loss from the car, the opening is closed during at least one of (a) the journey from the blast furnace station to the steel making plant and (b) the journey from the steel making plant back to the blast furnace by a disposable cover which is at least partly lost into the molten iron during the course of the emptying or filling of the car at the end of the journey concerned.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: June 25, 1985
    Assignees: Hoogovens Groep B.V., Foseco Trading A.G.
    Inventors: Willem Baas, Tette Hof, Heinrich Comes, Helmut Jaunich, Hubert Krampe