Patents by Inventor Bernhard Jürgens

Bernhard Jürgens 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).

  • Patent number: 6782890
    Abstract: The distributor of a cigarette rod making machine employs a zig-zag sifter which receives a mixture of tobacco ribs and shreds from a reservoir by way of a duct or an elevator conveyor. The shreds leave the uppermost stage of the sifter and are conveyed, by a Coanda separator, into an upright gathering duct which discharges shreds for delivery onto the concave surface(s) of one or more guides serving to direct one or more streams of shreds against the underside(s) of one or more foraminous belt conveyors which advance the stream(s) past one or more trimming devices serving to remove the surplus and to thus convert each stream into a rod-like filler which is ready to be draped into a web of cigarette paper. The removed surplus is returned into the reservoir or directly into the zig-zag sifter.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: August 31, 2004
    Assignee: Hauni Maschinenbau AG
    Inventors: Ralf Barkmann, Rolf Lindemann, Reinhard Hoppe, Bernhard Jürgens, Peter Schumacher, Manuel Hansch