Patents by Inventor Fritz Rodenhauser

Fritz Rodenhauser 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 and apparatus for the manufacture of cement from raw cement meal
    Patent number: 4891007
    Abstract: A method and apparatus for the manufacture of cement from raw cement meal wherein the meal passes through a series of preheating cyclones, through a calcining zone, through a rotary sintering furnace and to a cooler with the flow of meal from a penultimate cyclone heat exchanger divided into subflows with one chamber receiving air from the cooler and also receiving burning fuels that are extremely difficult to burn and both calcining chambers delivering meal to the last heat exchanger for delivery to the furnace.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: January 2, 1990
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Horst Herchenbach, Albrecht Wolter, Fritz Rodenhauser