Patents by Inventor Johannes Albertus Vink

Johannes Albertus Vink 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: 3932091
    Abstract: A pellet mill for making food pellets from a flour product comprising a vertically arranged driven annular rotary die having radial die openings and a number of extrusion rollers inside this annular die and cooperating with the inner cylindrical wall of the die, which rollers are mounted for rotation in a common roller frame carried by a shaft which is held stationary by shear pins under normal operating conditions. The roller frame supports a number of feed tubes, one for each extrusion roller, which tubes each extend axially through the interior of the annular die between the rollers and near the inner die surface and the flour product is fed to these tubes by screw conveyors adjoining the open ends of the feed tubes with minimum clearance, the other, inner ends of the tubes being closed.
    Type: Grant
    Filed: January 28, 1975
    Date of Patent: January 13, 1976
    Inventor: Johannes Albertus Vink