Patents by Inventor Rudolf A. Heckmann

Rudolf A. Heckmann 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).

  • Heated follower plate
    Patent number: 6076705
    Abstract: A heated follower plate for use with drum end loaders has a number of concentric downwardly facing ribs which have heating elements located in the lower ends thereof. A plurality of radial passages are provided which alternate between those which extend fully from the circumference of the plate to the center with those which extend only partially inwardly. The bottom surface formed by the ribs is actually slightly convex in shape.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: June 20, 2000
    Assignee: Graco Inc.
    Inventors: Rudolf A. Heckmann, Peter M. White