Patents by Inventor Friedhelm Heubner

Friedhelm Heubner 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).

  • Automatic control for electro-pneumatic wet settling
    Patent number: 4264441
    Abstract: An automatic control for an electropneumatic wet settling machine, for the separation of mineral mixtures, in particular coal, through the pulsation of the separating liquid, provides that the separating liquid is energized and controlled by means of compressed air in pulsing chambers, and that measuring devices for measuring the movement of the separating liquid are provided to signal, advantageously on an analog basis, the movement of the separating liquid in order to control the introduction and exhaust of compresssed air from the pulsing chambers.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: April 28, 1981
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Friedhelm Heubner, Werner Hasse, Karl-Heinz Weiffen