Patents by Inventor Bernd Helming

Bernd Helming 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 cooler
    Patent number: 4014642
    Abstract: The shaft cooler comprises a plurality of power-driven adjacent horizontal hollow perforated comminuting rolls. An upper section of the shaft cooler is adapted to hold a layer of material from 50 to 100 cm. deep above the rolls. Cooling air is supplied to the interior of each roll to cause it to be discharged into such layer of material. An aftercooling section below the rolls is provided with means for indirect cooling of the comminuted material and has a depth which is several times that of said layer.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: March 29, 1977
    Assignee: Polysius AG
    Inventor: Bernd Helming