Patents by Inventor K. Eric Bengtson

K. Eric Bengtson 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).

  • Feeding screw
    Patent number: 5101961
    Abstract: A feed screw for use in a rectangular bin outlet permits uniform feed from the bin along a length of the screw. This is achieved with a screw of uniform pitch on a shaft comprising a plurality of coaxial and contiguous cylindrical sections having progressively decreasing diameters dimensioned so that the differences in volume capacity between each pair of contiguous sections are equal over such length.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: April 7, 1992
    Assignee: Jenike & Johanson, Inc.
    Inventors: K. Eric Bengtson, E. LeRoy Baldwin