Patents by Inventor Egon Krohn

Egon Krohn 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).

  • Dragee-making drum with partition wall for separating the black zone from the grey zone
    Patent number: 4402278
    Abstract: A dragee-making drum cooperating with a partition wall in order to promote cleanliness, particularly during the manufacture of medical preparations, by increasing the isolation between the clean "grey" zone in front of the partition wall and the dirtier "black" zone behind it. This increased isolation is accomplished by providing a flanged rim at the mouth of the drum to fit within a corresponding U-shaped seal disposed at the opening of the partition wall. An opening is provided at the bottom of the seal for removal of debris.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: September 6, 1983
    Assignee: PS Pharma Maschinen und Gerate GmbH
    Inventors: Kurt Waldkirch, Gunther Seifried, Egon Krohn