Patents by Inventor Hermann Knepper

Hermann Knepper 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 for making of solid fertilizer by separation of liquid manure and device for carrying out this method
    Patent number: 4391623
    Abstract: Method for making of solid fertilizer by separation of liquid manure into a solid and a liquid phase by means of a separating vessel, wherein the charged liquid manure at first is divided into a solid layer and into a liquid phase and from where the liquid phase is fed into a collector vessel, and whereby the solid phase is separated. The duration time of the liquid manure in its resting stage is delayed until the layer formed by the solid phase is separated on the top of the vessel and then the discharge of the liquid phase is carried out through closeable openings.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: July 5, 1983
    Assignee: Heinrich Bernhard Brinkmann
    Inventor: Hermann Knepper